Živković, Slavoljub

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  • Živković, Slavoljub (130)
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Author's Bibliography

Opto-magnetic imaging spectroscopy in analyzing rotary NiTi endodontic instruments

Jovanović-Medojević, Milica; Dragičević, Aleksandra; Milanović, Ivana; Matija, Lidija; Živković, Slavoljub

(© 2023 Elsevier Ltd, 2023)

TY  - JOUR
AU  - Jovanović-Medojević, Milica
AU  - Dragičević, Aleksandra
AU  - Milanović, Ivana
AU  - Matija, Lidija
AU  - Živković, Slavoljub
PY  - 2023
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/3280
AB  - Intra-canal fracture of rotary NiTi instruments occurs due to torsional stress, cyclic fatigue, or a combination of these two factors. Broken instruments are a serious obstacle to shaping, cleaning, and filling of the root canal and can adversely affect the outcome of endodontic therapy. The aim of this study was to examine the magnetic properties and ultrastructural changes of new, used, and fractured NiTi instruments using opto-magnetic imaging spectroscopy (OMIS). The study included three sets of different types of rotary instruments: MTwo (VDW, Munich, Germany), Pro Taper Universal (Dentsply Maillefer, Ballaigues, Switzerland), and BioRace (FKG DENTAIRE Swiss Dental Products, Le Cret-du-Locle Switzerland). Root canal shaping was performed on root canals with different curvatures, and after intra-canal fracture, in-struments of the same type (new, used, and fractured) were analyzed using OMIS at the Faculty of Mechanical Engineering, University of Belgrade. The obtained results showed a coincidence of peak localization for the used instruments that did not suffer a fracture, as well as for new, unused instruments of all examined groups. Additionally, there was a coincidence of peak intensities for new and fractured instruments in all groups. The specific treatment of electropolishing of the active surface of BioRace instruments caused a completely different electromagnetic response compared to conventional NiTi sets of tested instruments. New, unused BioRace instruments had the most pronounced pos-itive (5.6078 n.a.u. x1000) and negative (-8.5218 n.a.u. x1000) intensity values. The analysis of NiTi instruments using opto-magnetic imaging spectroscopy indicated changes in the magnetic properties after their instrumentation.
PB  - © 2023 Elsevier Ltd
T2  - Journal of the Mechanical Behavior of Biomedical Materials
T1  - Opto-magnetic imaging spectroscopy in analyzing rotary NiTi endodontic instruments
VL  - 141
SP  - 105789
DO  - 10.1016/j.jmbbm.2023.105789
ER  - 
@article{
author = "Jovanović-Medojević, Milica and Dragičević, Aleksandra and Milanović, Ivana and Matija, Lidija and Živković, Slavoljub",
year = "2023",
abstract = "Intra-canal fracture of rotary NiTi instruments occurs due to torsional stress, cyclic fatigue, or a combination of these two factors. Broken instruments are a serious obstacle to shaping, cleaning, and filling of the root canal and can adversely affect the outcome of endodontic therapy. The aim of this study was to examine the magnetic properties and ultrastructural changes of new, used, and fractured NiTi instruments using opto-magnetic imaging spectroscopy (OMIS). The study included three sets of different types of rotary instruments: MTwo (VDW, Munich, Germany), Pro Taper Universal (Dentsply Maillefer, Ballaigues, Switzerland), and BioRace (FKG DENTAIRE Swiss Dental Products, Le Cret-du-Locle Switzerland). Root canal shaping was performed on root canals with different curvatures, and after intra-canal fracture, in-struments of the same type (new, used, and fractured) were analyzed using OMIS at the Faculty of Mechanical Engineering, University of Belgrade. The obtained results showed a coincidence of peak localization for the used instruments that did not suffer a fracture, as well as for new, unused instruments of all examined groups. Additionally, there was a coincidence of peak intensities for new and fractured instruments in all groups. The specific treatment of electropolishing of the active surface of BioRace instruments caused a completely different electromagnetic response compared to conventional NiTi sets of tested instruments. New, unused BioRace instruments had the most pronounced pos-itive (5.6078 n.a.u. x1000) and negative (-8.5218 n.a.u. x1000) intensity values. The analysis of NiTi instruments using opto-magnetic imaging spectroscopy indicated changes in the magnetic properties after their instrumentation.",
publisher = "© 2023 Elsevier Ltd",
journal = "Journal of the Mechanical Behavior of Biomedical Materials",
title = "Opto-magnetic imaging spectroscopy in analyzing rotary NiTi endodontic instruments",
volume = "141",
pages = "105789",
doi = "10.1016/j.jmbbm.2023.105789"
}
Jovanović-Medojević, M., Dragičević, A., Milanović, I., Matija, L.,& Živković, S.. (2023). Opto-magnetic imaging spectroscopy in analyzing rotary NiTi endodontic instruments. in Journal of the Mechanical Behavior of Biomedical Materials
© 2023 Elsevier Ltd., 141, 105789.
https://doi.org/10.1016/j.jmbbm.2023.105789
Jovanović-Medojević M, Dragičević A, Milanović I, Matija L, Živković S. Opto-magnetic imaging spectroscopy in analyzing rotary NiTi endodontic instruments. in Journal of the Mechanical Behavior of Biomedical Materials. 2023;141:105789.
doi:10.1016/j.jmbbm.2023.105789 .
Jovanović-Medojević, Milica, Dragičević, Aleksandra, Milanović, Ivana, Matija, Lidija, Živković, Slavoljub, "Opto-magnetic imaging spectroscopy in analyzing rotary NiTi endodontic instruments" in Journal of the Mechanical Behavior of Biomedical Materials, 141 (2023):105789,
https://doi.org/10.1016/j.jmbbm.2023.105789 . .
4
2

Nickel-titanium files in endodontics: Development, improvement and modifications of nickel-titanium alloy

Živković, Slavoljub; Jovanović-Medojević, Milica; Nešković, Jelena; Popović-Bajić, Marijana

(Vojnomedicinska akademija - Institut za naučne informacije, Beograd, 2023)

TY  - JOUR
AU  - Živković, Slavoljub
AU  - Jovanović-Medojević, Milica
AU  - Nešković, Jelena
AU  - Popović-Bajić, Marijana
PY  - 2023
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/3272
PB  - Vojnomedicinska akademija - Institut za naučne informacije, Beograd
T2  - Vojnosanitetski pregled
T1  - Nickel-titanium files in endodontics: Development, improvement and modifications of nickel-titanium alloy
T1  - Nikl-titanijumski instrumenti u endodonciji - razvoj, usavršavanje i modifikacije nikl-titanijumskih legura
VL  - 80
IS  - 3
SP  - 262
EP  - 269
DO  - 10.2298/VSP220328057Z
ER  - 
@article{
author = "Živković, Slavoljub and Jovanović-Medojević, Milica and Nešković, Jelena and Popović-Bajić, Marijana",
year = "2023",
publisher = "Vojnomedicinska akademija - Institut za naučne informacije, Beograd",
journal = "Vojnosanitetski pregled",
title = "Nickel-titanium files in endodontics: Development, improvement and modifications of nickel-titanium alloy, Nikl-titanijumski instrumenti u endodonciji - razvoj, usavršavanje i modifikacije nikl-titanijumskih legura",
volume = "80",
number = "3",
pages = "262-269",
doi = "10.2298/VSP220328057Z"
}
Živković, S., Jovanović-Medojević, M., Nešković, J.,& Popović-Bajić, M.. (2023). Nickel-titanium files in endodontics: Development, improvement and modifications of nickel-titanium alloy. in Vojnosanitetski pregled
Vojnomedicinska akademija - Institut za naučne informacije, Beograd., 80(3), 262-269.
https://doi.org/10.2298/VSP220328057Z
Živković S, Jovanović-Medojević M, Nešković J, Popović-Bajić M. Nickel-titanium files in endodontics: Development, improvement and modifications of nickel-titanium alloy. in Vojnosanitetski pregled. 2023;80(3):262-269.
doi:10.2298/VSP220328057Z .
Živković, Slavoljub, Jovanović-Medojević, Milica, Nešković, Jelena, Popović-Bajić, Marijana, "Nickel-titanium files in endodontics: Development, improvement and modifications of nickel-titanium alloy" in Vojnosanitetski pregled, 80, no. 3 (2023):262-269,
https://doi.org/10.2298/VSP220328057Z . .
1
1

A single-file endodontic treatment: A promising endodontic concept

Živković, Slavoljub; Popović-Bajić, Marijana; Jovanović-Medojević, Milica; Nešković, Jelena

(Vojnomedicinska akademija - Institut za naučne informacije, Beograd, 2022)

TY  - JOUR
AU  - Živković, Slavoljub
AU  - Popović-Bajić, Marijana
AU  - Jovanović-Medojević, Milica
AU  - Nešković, Jelena
PY  - 2022
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/3271
PB  - Vojnomedicinska akademija - Institut za naučne informacije, Beograd
T2  - Vojnosanitetski pregled
T1  - A single-file endodontic treatment: A promising endodontic concept
T1  - Endodontsko lečenje jednim instrumentom - perspektivni endodontski koncept
VL  - 79
IS  - 1
SP  - 86
EP  - 93
DO  - 10.2298/VSP210524078Z
ER  - 
@article{
author = "Živković, Slavoljub and Popović-Bajić, Marijana and Jovanović-Medojević, Milica and Nešković, Jelena",
year = "2022",
publisher = "Vojnomedicinska akademija - Institut za naučne informacije, Beograd",
journal = "Vojnosanitetski pregled",
title = "A single-file endodontic treatment: A promising endodontic concept, Endodontsko lečenje jednim instrumentom - perspektivni endodontski koncept",
volume = "79",
number = "1",
pages = "86-93",
doi = "10.2298/VSP210524078Z"
}
Živković, S., Popović-Bajić, M., Jovanović-Medojević, M.,& Nešković, J.. (2022). A single-file endodontic treatment: A promising endodontic concept. in Vojnosanitetski pregled
Vojnomedicinska akademija - Institut za naučne informacije, Beograd., 79(1), 86-93.
https://doi.org/10.2298/VSP210524078Z
Živković S, Popović-Bajić M, Jovanović-Medojević M, Nešković J. A single-file endodontic treatment: A promising endodontic concept. in Vojnosanitetski pregled. 2022;79(1):86-93.
doi:10.2298/VSP210524078Z .
Živković, Slavoljub, Popović-Bajić, Marijana, Jovanović-Medojević, Milica, Nešković, Jelena, "A single-file endodontic treatment: A promising endodontic concept" in Vojnosanitetski pregled, 79, no. 1 (2022):86-93,
https://doi.org/10.2298/VSP210524078Z . .
1

Effects of sodium hypochlorite on corrosion of the rotary nickel-titanium endodontic instruments - SEM analysis

Jovanović-Medojević, Milica; Nešković, Jelena; Popović-Bajić, Marijana; Stratimirović, Đorđe; Živković, Slavoljub

(Srpsko lekarsko društvo, Beograd, 2022)

TY  - JOUR
AU  - Jovanović-Medojević, Milica
AU  - Nešković, Jelena
AU  - Popović-Bajić, Marijana
AU  - Stratimirović, Đorđe
AU  - Živković, Slavoljub
PY  - 2022
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/3269
AB  - Introduction/Objective of this study is to use scanning electron microscopy (SEM) analysis to examine surfaces of new and same sets of Ni-Ti instruments after canal preparations, to check their suspectability to corrosion. Methods In this study, we used five different endodontic Ni-Ti instruments: K3, Mtwo, ProTaper Universal, HyFlex and BioRaCe. Instruments were analyzed before and after preparation of canals of different curvature, using SEM (150-2000 ×). Results Corrosion of the working part was observed in 5.5% of new Ni-Ti instruments of the K3 system (apical and middle segment), in 5.5% of Mtwo instruments (apical third), and in 11.1% of ProTaper Universal systems (apical and middle third). Corrosion was not observed on the new instruments of the HyFlex and BioRaCe kits. After instrumentation, disinfection, and sterilization, corrosion was observed in all sets of K3 and ProTaper Universal systems and in all HyFlex instruments of the first group. Corrosion was observed in the HyFlex system in the second group in 16.7% of instruments (apical and middle third) and in the third 83.3% in the apical and 66.7% in the middle segment. In the Mtwo set, corrosion was observed in 16.7% of instruments in the first (apical and middle third), in the second group in 33.3% of instruments in the apical part and 50% in the middle third, while in the third group, corrosion was observed in 16.7% of instruments in the middle third of instruments. Conclusion Rotary Ni-Ti instruments K3 and ProTaper Universal are susceptible to corrosion in a very high percentage. Ni-Ti systems with post-heat treatment of the working part (HyFlex) are somewhat more resistant to corrosion, while in Ni-Ti systems with electropolished surface (BioRaCe), corrosion is not observed.
AB  - Uvod/Cilj Cilj istraživanja je bio da se primenom skenirajuće elektronske mikroskopije (SEM) analiziraju površine nekorišćenih i istih setova nikl-titanijmskih (Ni-Ti) rotirajućih instrumenata nakon preparacije kanala, odnosno da se proveri njihova podložnost za pojavu korozije. Metod U istraživanje je uključeno pet različitih setova mašinskih endodontskih Ni-Ti instrumenata: K3, Mtwo, ProTaper Universal, HyFlex i BioRaCe. Instrumenti su analizirani pre upotrebe i nakon preparacije kanala različite povijenosti, pomoću SEM-a (150-2000 ×). Svaki set instrumenata je korišćen za obradu 10 kanala u tri eksperimentalne grupe (pravi, blago i izrazito povijeni kanali). Rezultati Korozija radnog dela uočena je kod 5,5% novih Ni-Ti instrumenata sistema K3 (apikalni i srednji segment), kod 5,5% Mtwo instrumenta (apikalna trećina) i kod 11,1% sistema ProTaper Universal (apikalna i srednja trećina). Korozija nije uočena na novim instrumentima HyFlex i BioRaCe setova. Nakon instrumentacije, dezinfekcije i sterilizacije korozija je primećena kod svih setova sistema K3 i ProTaper Universal i kod svih HyFlex instrumenata prve grupe. Korozija je uočena kod HyFlex sistema u drugoj grupi kod 16,7% instrumenata (apikalna i srednja trećina), a u trećoj grupi kod 83,3% instrumenata u apikalnom i 66,7% u srednjem segmentu. Kod Mtwo seta korozija je uočena kod 16,7% instrumenata u prvoj grupi (apikalna i srednja trećina), u drugoj grupi kod 33,3% instrumenata u apikalnom delu i 50% u srednjoj trećini, dok je u trećoj grupi korozija primećena kod 16,7% instrumenata u srednjoj trećini instrumenata. Zaključak Rotirajući Ni-Ti instrumenti K3 i ProTaper Universal podložni su koroziji u veoma visokom procentu. Ni-Ti sistemi sa naknadnom termičkom obradom radnog dela (HyFlex) nešto su otporniji na koroziju, dok kod Ni-Ti sistema sa elektropoliranom površinom (BioRaCe) korizija nije uočena.
PB  - Srpsko lekarsko društvo, Beograd
T2  - Srpski arhiv za celokupno lekarstvo
T1  - Effects of sodium hypochlorite on corrosion of the rotary nickel-titanium endodontic instruments - SEM analysis
T1  - Uticaj natrijum-hipohlorita na pojavu korozije rotirajućih Ni-Ti instrumenata - SEM analiza
VL  - 150
IS  - 5-6
SP  - 254
EP  - 260
DO  - 10.2298/SARH210321035J
ER  - 
@article{
author = "Jovanović-Medojević, Milica and Nešković, Jelena and Popović-Bajić, Marijana and Stratimirović, Đorđe and Živković, Slavoljub",
year = "2022",
abstract = "Introduction/Objective of this study is to use scanning electron microscopy (SEM) analysis to examine surfaces of new and same sets of Ni-Ti instruments after canal preparations, to check their suspectability to corrosion. Methods In this study, we used five different endodontic Ni-Ti instruments: K3, Mtwo, ProTaper Universal, HyFlex and BioRaCe. Instruments were analyzed before and after preparation of canals of different curvature, using SEM (150-2000 ×). Results Corrosion of the working part was observed in 5.5% of new Ni-Ti instruments of the K3 system (apical and middle segment), in 5.5% of Mtwo instruments (apical third), and in 11.1% of ProTaper Universal systems (apical and middle third). Corrosion was not observed on the new instruments of the HyFlex and BioRaCe kits. After instrumentation, disinfection, and sterilization, corrosion was observed in all sets of K3 and ProTaper Universal systems and in all HyFlex instruments of the first group. Corrosion was observed in the HyFlex system in the second group in 16.7% of instruments (apical and middle third) and in the third 83.3% in the apical and 66.7% in the middle segment. In the Mtwo set, corrosion was observed in 16.7% of instruments in the first (apical and middle third), in the second group in 33.3% of instruments in the apical part and 50% in the middle third, while in the third group, corrosion was observed in 16.7% of instruments in the middle third of instruments. Conclusion Rotary Ni-Ti instruments K3 and ProTaper Universal are susceptible to corrosion in a very high percentage. Ni-Ti systems with post-heat treatment of the working part (HyFlex) are somewhat more resistant to corrosion, while in Ni-Ti systems with electropolished surface (BioRaCe), corrosion is not observed., Uvod/Cilj Cilj istraživanja je bio da se primenom skenirajuće elektronske mikroskopije (SEM) analiziraju površine nekorišćenih i istih setova nikl-titanijmskih (Ni-Ti) rotirajućih instrumenata nakon preparacije kanala, odnosno da se proveri njihova podložnost za pojavu korozije. Metod U istraživanje je uključeno pet različitih setova mašinskih endodontskih Ni-Ti instrumenata: K3, Mtwo, ProTaper Universal, HyFlex i BioRaCe. Instrumenti su analizirani pre upotrebe i nakon preparacije kanala različite povijenosti, pomoću SEM-a (150-2000 ×). Svaki set instrumenata je korišćen za obradu 10 kanala u tri eksperimentalne grupe (pravi, blago i izrazito povijeni kanali). Rezultati Korozija radnog dela uočena je kod 5,5% novih Ni-Ti instrumenata sistema K3 (apikalni i srednji segment), kod 5,5% Mtwo instrumenta (apikalna trećina) i kod 11,1% sistema ProTaper Universal (apikalna i srednja trećina). Korozija nije uočena na novim instrumentima HyFlex i BioRaCe setova. Nakon instrumentacije, dezinfekcije i sterilizacije korozija je primećena kod svih setova sistema K3 i ProTaper Universal i kod svih HyFlex instrumenata prve grupe. Korozija je uočena kod HyFlex sistema u drugoj grupi kod 16,7% instrumenata (apikalna i srednja trećina), a u trećoj grupi kod 83,3% instrumenata u apikalnom i 66,7% u srednjem segmentu. Kod Mtwo seta korozija je uočena kod 16,7% instrumenata u prvoj grupi (apikalna i srednja trećina), u drugoj grupi kod 33,3% instrumenata u apikalnom delu i 50% u srednjoj trećini, dok je u trećoj grupi korozija primećena kod 16,7% instrumenata u srednjoj trećini instrumenata. Zaključak Rotirajući Ni-Ti instrumenti K3 i ProTaper Universal podložni su koroziji u veoma visokom procentu. Ni-Ti sistemi sa naknadnom termičkom obradom radnog dela (HyFlex) nešto su otporniji na koroziju, dok kod Ni-Ti sistema sa elektropoliranom površinom (BioRaCe) korizija nije uočena.",
publisher = "Srpsko lekarsko društvo, Beograd",
journal = "Srpski arhiv za celokupno lekarstvo",
title = "Effects of sodium hypochlorite on corrosion of the rotary nickel-titanium endodontic instruments - SEM analysis, Uticaj natrijum-hipohlorita na pojavu korozije rotirajućih Ni-Ti instrumenata - SEM analiza",
volume = "150",
number = "5-6",
pages = "254-260",
doi = "10.2298/SARH210321035J"
}
Jovanović-Medojević, M., Nešković, J., Popović-Bajić, M., Stratimirović, Đ.,& Živković, S.. (2022). Effects of sodium hypochlorite on corrosion of the rotary nickel-titanium endodontic instruments - SEM analysis. in Srpski arhiv za celokupno lekarstvo
Srpsko lekarsko društvo, Beograd., 150(5-6), 254-260.
https://doi.org/10.2298/SARH210321035J
Jovanović-Medojević M, Nešković J, Popović-Bajić M, Stratimirović Đ, Živković S. Effects of sodium hypochlorite on corrosion of the rotary nickel-titanium endodontic instruments - SEM analysis. in Srpski arhiv za celokupno lekarstvo. 2022;150(5-6):254-260.
doi:10.2298/SARH210321035J .
Jovanović-Medojević, Milica, Nešković, Jelena, Popović-Bajić, Marijana, Stratimirović, Đorđe, Živković, Slavoljub, "Effects of sodium hypochlorite on corrosion of the rotary nickel-titanium endodontic instruments - SEM analysis" in Srpski arhiv za celokupno lekarstvo, 150, no. 5-6 (2022):254-260,
https://doi.org/10.2298/SARH210321035J . .

How to prevent fracture of NiTi files

Živković, Slavoljub; Popović-Bajić, Marijana; Jovanović-Medojević, Milica; Nešković, Jelena

(Srpsko lekarsko društvo - Stomatološka sekcija, Beograd, 2021)

TY  - JOUR
AU  - Živković, Slavoljub
AU  - Popović-Bajić, Marijana
AU  - Jovanović-Medojević, Milica
AU  - Nešković, Jelena
PY  - 2021
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/3276
AB  - More certain therapeutic and significantly facilitated solution of everyday endodontic problems are provided by the introduction of NiTi rotary files in endodontic practice and their proper application. However, their widespread use has caused more and more frequent fractures and has become a significant frustrating factor that diminishes their numerous benefits. Torsional stress and cyclic fatigue are the main reasons for the occurrence of a fracture, and the frequency of NiTi file fractures is exactly proportional to the degree of bending of the canal, knowledge of the features of the file, ie. the skill and expertise of the therapist. The most dominant factor for the occurrence of fractures is the dentist who, in addition to manual dexterity, must have a good knowledge of the anatomy of various canal systems and file design in order to make the best choice for each individual case. Properly formed access cavity and knowledge of the working part of NiTi files enable maximum realization of endodontic skills, increased efficiency of intervention and reduced possibility of error during canal instrumentation. The special treatment of NiTi alloy and new solutions related to the design of the working part have significantly increased file flexibility and resistance to cyclic fatigue. Specific design (reduced number of threads, change of conicity, interruption of blade continuity), reduced engagement of file, ie. change of dynamics of movement in the canal (full rotation, reciprocal, eccentric, transaxial), as well as reduced number of processing files, have also significantly influenced the reduction of fracture risks. The aim of this paper was to analyze the most common reasons for the fracture of NiTi files and emphasize measures and factors that can increase their safe use and reduce complications during canal instrumentation.
AB  - Uvođenjem NiTi rotirajućih instrumenata u endodontsku praksu i njihovom pravilnom primenom obezbeđena su izvesnija terapijska rešenja i znatno je olakšano rešavanje svakodnevnih endodontskih problema. Međutim, njihova široka primena uzrokovala je sve učestalije frakture i postala značajan frustrirajući faktor koji umanjuje njihove brojne benefite. Torziono naprezanje i ciklični zamor su glavni razlozi za nastanak frakture, a učestalost loma NiTi turpija je upravo srazmerna stepenu povijenosti kanala, poznavanju karakteristika instrumenta, odnosno veštini i stručnosti terapeuta. Najdominantniji faktor za nastanak fraktura je stomatolog, koji osim manuelne spretnosti mora dobro poznavati anatomiju različitih kanalskih sistema i dizajn turpije kako bi napravio najbolji izbor za svaki pojedinačni slučaj. Pravilno formiran pristupni kavitet i poznavanje radnog dela NiTi instrumenata omogućavaju maksimalnu realizaciju endodontske veštine, povećanu efikasnost intervencije i smanjenu mogućnost greške tokom obrade kanala. Poseban tretman NiTi legure i nova rešenja vezana za dizajn radnog dela značajno su povećali fleksibilnost turpije i otpornost na ciklični zamor. Specifičan dizajn (smanjen broj navoja, promena koničnosti, prekid kontinuiteta sečiva) i smanjena angažovanost instrumenta, odnosno promena dinamike kretanja u kanalu (puna rotacija, recipročna, ekcentrična, transaksijalna) i smanjenje broja turpija za obradu, uticali su i na značajno smanjenje rizika od preloma. Cilj ovog rada je bio da ukaže na najčešće razloge za pojavu fraktura NiTi turpija i apostrofira mere i faktore koji mogu povećati sigurnost instrumentacije i smanjiti moguće komplikacije tokom obrade kanala.
PB  - Srpsko lekarsko društvo - Stomatološka sekcija, Beograd
T2  - Stomatološki glasnik Srbije
T1  - How to prevent fracture of NiTi files
T1  - Kako sprečiti frakturu NiTi instrumenata
VL  - 68
IS  - 2
SP  - 86
EP  - 93
DO  - 10.2298/SGS2102086Z
ER  - 
@article{
author = "Živković, Slavoljub and Popović-Bajić, Marijana and Jovanović-Medojević, Milica and Nešković, Jelena",
year = "2021",
abstract = "More certain therapeutic and significantly facilitated solution of everyday endodontic problems are provided by the introduction of NiTi rotary files in endodontic practice and their proper application. However, their widespread use has caused more and more frequent fractures and has become a significant frustrating factor that diminishes their numerous benefits. Torsional stress and cyclic fatigue are the main reasons for the occurrence of a fracture, and the frequency of NiTi file fractures is exactly proportional to the degree of bending of the canal, knowledge of the features of the file, ie. the skill and expertise of the therapist. The most dominant factor for the occurrence of fractures is the dentist who, in addition to manual dexterity, must have a good knowledge of the anatomy of various canal systems and file design in order to make the best choice for each individual case. Properly formed access cavity and knowledge of the working part of NiTi files enable maximum realization of endodontic skills, increased efficiency of intervention and reduced possibility of error during canal instrumentation. The special treatment of NiTi alloy and new solutions related to the design of the working part have significantly increased file flexibility and resistance to cyclic fatigue. Specific design (reduced number of threads, change of conicity, interruption of blade continuity), reduced engagement of file, ie. change of dynamics of movement in the canal (full rotation, reciprocal, eccentric, transaxial), as well as reduced number of processing files, have also significantly influenced the reduction of fracture risks. The aim of this paper was to analyze the most common reasons for the fracture of NiTi files and emphasize measures and factors that can increase their safe use and reduce complications during canal instrumentation., Uvođenjem NiTi rotirajućih instrumenata u endodontsku praksu i njihovom pravilnom primenom obezbeđena su izvesnija terapijska rešenja i znatno je olakšano rešavanje svakodnevnih endodontskih problema. Međutim, njihova široka primena uzrokovala je sve učestalije frakture i postala značajan frustrirajući faktor koji umanjuje njihove brojne benefite. Torziono naprezanje i ciklični zamor su glavni razlozi za nastanak frakture, a učestalost loma NiTi turpija je upravo srazmerna stepenu povijenosti kanala, poznavanju karakteristika instrumenta, odnosno veštini i stručnosti terapeuta. Najdominantniji faktor za nastanak fraktura je stomatolog, koji osim manuelne spretnosti mora dobro poznavati anatomiju različitih kanalskih sistema i dizajn turpije kako bi napravio najbolji izbor za svaki pojedinačni slučaj. Pravilno formiran pristupni kavitet i poznavanje radnog dela NiTi instrumenata omogućavaju maksimalnu realizaciju endodontske veštine, povećanu efikasnost intervencije i smanjenu mogućnost greške tokom obrade kanala. Poseban tretman NiTi legure i nova rešenja vezana za dizajn radnog dela značajno su povećali fleksibilnost turpije i otpornost na ciklični zamor. Specifičan dizajn (smanjen broj navoja, promena koničnosti, prekid kontinuiteta sečiva) i smanjena angažovanost instrumenta, odnosno promena dinamike kretanja u kanalu (puna rotacija, recipročna, ekcentrična, transaksijalna) i smanjenje broja turpija za obradu, uticali su i na značajno smanjenje rizika od preloma. Cilj ovog rada je bio da ukaže na najčešće razloge za pojavu fraktura NiTi turpija i apostrofira mere i faktore koji mogu povećati sigurnost instrumentacije i smanjiti moguće komplikacije tokom obrade kanala.",
publisher = "Srpsko lekarsko društvo - Stomatološka sekcija, Beograd",
journal = "Stomatološki glasnik Srbije",
title = "How to prevent fracture of NiTi files, Kako sprečiti frakturu NiTi instrumenata",
volume = "68",
number = "2",
pages = "86-93",
doi = "10.2298/SGS2102086Z"
}
Živković, S., Popović-Bajić, M., Jovanović-Medojević, M.,& Nešković, J.. (2021). How to prevent fracture of NiTi files. in Stomatološki glasnik Srbije
Srpsko lekarsko društvo - Stomatološka sekcija, Beograd., 68(2), 86-93.
https://doi.org/10.2298/SGS2102086Z
Živković S, Popović-Bajić M, Jovanović-Medojević M, Nešković J. How to prevent fracture of NiTi files. in Stomatološki glasnik Srbije. 2021;68(2):86-93.
doi:10.2298/SGS2102086Z .
Živković, Slavoljub, Popović-Bajić, Marijana, Jovanović-Medojević, Milica, Nešković, Jelena, "How to prevent fracture of NiTi files" in Stomatološki glasnik Srbije, 68, no. 2 (2021):86-93,
https://doi.org/10.2298/SGS2102086Z . .
2

Sem analysis of working surface in new manual endodontic instruments

Jovanović-Medojević, Milica; Pelemiš, Martina; Nešković, Jelena; Popović-Bajić, Marijana; Stratimirović, Đorđe; Živković, Slavoljub

(Srpsko lekarsko društvo - Stomatološka sekcija, Beograd, 2020)

TY  - JOUR
AU  - Jovanović-Medojević, Milica
AU  - Pelemiš, Martina
AU  - Nešković, Jelena
AU  - Popović-Bajić, Marijana
AU  - Stratimirović, Đorđe
AU  - Živković, Slavoljub
PY  - 2020
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/3278
AB  - Introduction. The aim of this study was to analyze working surfaces of new hand endodontic instruments and to check possible existence of dirt or defects on working surface that resulted from manufacturing process using SEM. Material and methods. Three sets of new hand instruments: K-File (KF), (18 instruments) (Dentsply Maillefer, Switzerland) and Hedstorm Files (HF), (18 instruments) (SybronEndo Co, USA) were used. Instruments were analyzed by SEM method at 170× magnification while semi-quantitative EDS analysis was used to determine chemical composition of dirt particles. Fisher test (p < 0.05) was applied in statistical analysis. Results. Results showed that none of the instruments was defect-free. The most common defects were metal strips and fretting noticed at the surface of all tested instruments. Debris was present on all KF (100% in apical and middle third) and HF (56% in apical and 56% in middle third) instruments. Pitting was noticed in KF (33% in apical and 39% in middle third) and HF (11% in apical and 6% in middle third) instruments. Corrosion of working surface, metal flash and disruption of cutting edge were marked only in KF group. Conclusion. Manufacturing defects were noticed in all instruments and the most common type of irregularity were metal strips and fretting.
AB  - Uvod Cilj ovog rada je bio da se primenom skenirajuće elektronske mikroskopije analiziraju površine novih ručnih endodontskih instrumenata i proveri eventualno postojanje proizvodnih nečistoća ili defekata na radnom delu. Materijal i metod U istraživanju su korišćena po tri seta novih ručnih instrumenata: K-File (KF), (18 instrumenata) (Dentsply Maillefer, Switzerland) i Hedstorm Files (HF), (18 instrumenata) (SybronEndo Co, USA). Instrumenti su podvrgnuti SEM analizi sa uvećanjem 170×, a semikvantitativnom EDXS analizom utvrđivan je hemijski sastav nečistoće. Statistička analiza je urađena primenom Fišerovog testa (p < 0,05). Rezultati Rezultati su pokazali da ne postoji nijedan instrument bez defekta. Najučestaliji tip defekta je bilo prisustvo metalnih opiljaka i žlebova, koji su uočeni na površini svih ispitivanih instrumenata. Debri je uočen na svim KF (100% apikalno i u srednjoj trećini) i HF (56% apikalno i 56% u srednjoj trećini). Prisustvo udubljenja zabeleženo je kod KF (33% apikalno i 39% u srednjoj trećini) i HF (11% apikalno i 6% u srednjoj trećini). Korozija radne površine, pojava uglačane površine i prekid sečivne ivice su uočeni samo u grupi KF. Zaključak Na svim ispitivanim ručnim instrumentima su uočeni proizvodni defekti, a najučestaliji tip nepravilnosti je bilo prisustvo metalnih opiljaka i žlebova.
PB  - Srpsko lekarsko društvo - Stomatološka sekcija, Beograd
T2  - Stomatološki glasnik Srbije
T1  - Sem analysis of working surface in new manual endodontic instruments
T1  - SEM analiza površine radnog dela novih ručnih endodontskih instrumenata
VL  - 67
IS  - 1
SP  - 15
EP  - 26
DO  - 10.2298/SGS2001015J
ER  - 
@article{
author = "Jovanović-Medojević, Milica and Pelemiš, Martina and Nešković, Jelena and Popović-Bajić, Marijana and Stratimirović, Đorđe and Živković, Slavoljub",
year = "2020",
abstract = "Introduction. The aim of this study was to analyze working surfaces of new hand endodontic instruments and to check possible existence of dirt or defects on working surface that resulted from manufacturing process using SEM. Material and methods. Three sets of new hand instruments: K-File (KF), (18 instruments) (Dentsply Maillefer, Switzerland) and Hedstorm Files (HF), (18 instruments) (SybronEndo Co, USA) were used. Instruments were analyzed by SEM method at 170× magnification while semi-quantitative EDS analysis was used to determine chemical composition of dirt particles. Fisher test (p < 0.05) was applied in statistical analysis. Results. Results showed that none of the instruments was defect-free. The most common defects were metal strips and fretting noticed at the surface of all tested instruments. Debris was present on all KF (100% in apical and middle third) and HF (56% in apical and 56% in middle third) instruments. Pitting was noticed in KF (33% in apical and 39% in middle third) and HF (11% in apical and 6% in middle third) instruments. Corrosion of working surface, metal flash and disruption of cutting edge were marked only in KF group. Conclusion. Manufacturing defects were noticed in all instruments and the most common type of irregularity were metal strips and fretting., Uvod Cilj ovog rada je bio da se primenom skenirajuće elektronske mikroskopije analiziraju površine novih ručnih endodontskih instrumenata i proveri eventualno postojanje proizvodnih nečistoća ili defekata na radnom delu. Materijal i metod U istraživanju su korišćena po tri seta novih ručnih instrumenata: K-File (KF), (18 instrumenata) (Dentsply Maillefer, Switzerland) i Hedstorm Files (HF), (18 instrumenata) (SybronEndo Co, USA). Instrumenti su podvrgnuti SEM analizi sa uvećanjem 170×, a semikvantitativnom EDXS analizom utvrđivan je hemijski sastav nečistoće. Statistička analiza je urađena primenom Fišerovog testa (p < 0,05). Rezultati Rezultati su pokazali da ne postoji nijedan instrument bez defekta. Najučestaliji tip defekta je bilo prisustvo metalnih opiljaka i žlebova, koji su uočeni na površini svih ispitivanih instrumenata. Debri je uočen na svim KF (100% apikalno i u srednjoj trećini) i HF (56% apikalno i 56% u srednjoj trećini). Prisustvo udubljenja zabeleženo je kod KF (33% apikalno i 39% u srednjoj trećini) i HF (11% apikalno i 6% u srednjoj trećini). Korozija radne površine, pojava uglačane površine i prekid sečivne ivice su uočeni samo u grupi KF. Zaključak Na svim ispitivanim ručnim instrumentima su uočeni proizvodni defekti, a najučestaliji tip nepravilnosti je bilo prisustvo metalnih opiljaka i žlebova.",
publisher = "Srpsko lekarsko društvo - Stomatološka sekcija, Beograd",
journal = "Stomatološki glasnik Srbije",
title = "Sem analysis of working surface in new manual endodontic instruments, SEM analiza površine radnog dela novih ručnih endodontskih instrumenata",
volume = "67",
number = "1",
pages = "15-26",
doi = "10.2298/SGS2001015J"
}
Jovanović-Medojević, M., Pelemiš, M., Nešković, J., Popović-Bajić, M., Stratimirović, Đ.,& Živković, S.. (2020). Sem analysis of working surface in new manual endodontic instruments. in Stomatološki glasnik Srbije
Srpsko lekarsko društvo - Stomatološka sekcija, Beograd., 67(1), 15-26.
https://doi.org/10.2298/SGS2001015J
Jovanović-Medojević M, Pelemiš M, Nešković J, Popović-Bajić M, Stratimirović Đ, Živković S. Sem analysis of working surface in new manual endodontic instruments. in Stomatološki glasnik Srbije. 2020;67(1):15-26.
doi:10.2298/SGS2001015J .
Jovanović-Medojević, Milica, Pelemiš, Martina, Nešković, Jelena, Popović-Bajić, Marijana, Stratimirović, Đorđe, Živković, Slavoljub, "Sem analysis of working surface in new manual endodontic instruments" in Stomatološki glasnik Srbije, 67, no. 1 (2020):15-26,
https://doi.org/10.2298/SGS2001015J . .
1

Analysis of working surface in new manual and rotary endodontic instruments (scanning electron microscopy)

Jovanović-Medojević, Milica; Pelemiš, Martina; Nešković, Jelena; Popović-Bajić, Marijana; Stratimirović, Đorđe; Živković, Slavoljub

(Srpsko lekarsko društvo, Beograd, 2020)

TY  - JOUR
AU  - Jovanović-Medojević, Milica
AU  - Pelemiš, Martina
AU  - Nešković, Jelena
AU  - Popović-Bajić, Marijana
AU  - Stratimirović, Đorđe
AU  - Živković, Slavoljub
PY  - 2020
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/3268
AB  - Introduction/Objective. The objective of this study is to use scanning electron microscopy (SEM) to analyze working surfaces of new manual and rotary endodontic instruments and to check possible existence of manufacture dirt particles or defects on the working surface. Methods. In this study, we used three sets of new manual instruments: K-File, KF (Dentsply Maillefer, Switzerland) and Hedstorm Files, HF (SybronEndo Co, USA) and three sets of mechanical Ni-Ti instruments – type K3 (SybronEndo Co, USA) and BioRaCe (FKG DENTAIRE Swiss Dental Products, Switzerland). The instruments were analyzed using SEM method at 170 × magnification while semi-quantitative energy dispersive x-ray analysis was used to determine chemical composition of dirt particles. Fisher test (p < 0.05) was applied in statistical analysis. Results. Results showed that none of the instruments were defect-free. The most common defect type was the presence of metal strips, which were noticed at the surface of all tested instruments. Debris was present on all manual and only one type of mechanical instruments, K3 (39% in the apical and 33% in the middle third). Fretting was noticed in all manual KF and all mechanical instruments of the K3 group. Pitting was common in all manual instruments, KF (33% in the apical and 39% in the middle third) and HF (11% in the apical and 6% in the middle third). Corrosion of the working surface, metal flash, and disruption of the cutting edge were marked only in the KF group. Conclusion. Manufacture defects were noticed in all instruments and the most common type of irregularity were metal strips. Electropolished surface of BioRaCe instruments showed no debris of organic origin.
AB  - Uvod/Cilj Cilj ovog rada je bio da se primenom skenirajuće elektronske mikroskopije (SEM) analiziraju površine novih ručnih i mašinskih endodontskih instrumenata i proveri eventualno postojanje proizvodnih nečistoća ili defekata na radnom delu. Metode U istraživanju su korišćena po tri seta novih ručnih instrumenata: K-File, KF (Dentsply Maillefer, Švajcarska) i Hedstorm Files, HF (SybronEndo Co, SAD) i po tri seta mašinskih Ni-Ti instrumenata, tipa K3 (SybronEndo Co) i BioRaCe (FKG DENTAIRE Swiss Dental Products, Švajcarska). Instrumenti su podvrgnuti SEM analizi sa uvećanjem 170×, a semikvantitativnom, EDXS analizom utvrđivan je hemijski sastav nečistoće. Statistička analiza je urađena primenom Fišerovog testa (p < 0,05). Rezultati Rezultati su pokazali da ne postoji nijedan instrument bez defekta. Najučestaliji tip defekta je bilo prisustvo metalnih opiljaka, koji su uočeni na površini svih ispitivanih instrumenata. Debri je uočen na svim ručnim i samo na jednom tipu mašinskih instrumenata, K3 (39% na apikalnoj i 33% na srednjoj trećini). Žlebovi su uočeni na svim ručnim KF i svim mašinskim instrumentima grupe K3. Prisustvo udubljenja zabeleženo je kod ručnih instrumenata, KF (33% apikalna i 39% srednja trećina) i HF (11% apikalna i 6% srednja trećina). Korozija radne površine, pojava uglačane površine i prekid sečivne ivice su uočeni samo u grupi KF. Zaključak Na svim ispitivanim instrumentima su uočeni proizvodni defekti, a najučestaliji tip nepravilnosti su metalni opiljci. Na elektropoliranoj površini instrumenata BioRaCe nije uočeno prisustvo organskog debrija.
PB  - Srpsko lekarsko društvo, Beograd
T2  - Srpski arhiv za celokupno lekarstvo
T1  - Analysis of working surface in new manual and rotary endodontic instruments (scanning electron microscopy)
T1  - Analiza površine radnog dela novih ručnih i mašinskih endodontskih instrumenata (skenirajuća elektronska mikroskopija)
VL  - 148
IS  - 7-8
SP  - 398
EP  - 403
DO  - 10.2298/SARH190704018J
ER  - 
@article{
author = "Jovanović-Medojević, Milica and Pelemiš, Martina and Nešković, Jelena and Popović-Bajić, Marijana and Stratimirović, Đorđe and Živković, Slavoljub",
year = "2020",
abstract = "Introduction/Objective. The objective of this study is to use scanning electron microscopy (SEM) to analyze working surfaces of new manual and rotary endodontic instruments and to check possible existence of manufacture dirt particles or defects on the working surface. Methods. In this study, we used three sets of new manual instruments: K-File, KF (Dentsply Maillefer, Switzerland) and Hedstorm Files, HF (SybronEndo Co, USA) and three sets of mechanical Ni-Ti instruments – type K3 (SybronEndo Co, USA) and BioRaCe (FKG DENTAIRE Swiss Dental Products, Switzerland). The instruments were analyzed using SEM method at 170 × magnification while semi-quantitative energy dispersive x-ray analysis was used to determine chemical composition of dirt particles. Fisher test (p < 0.05) was applied in statistical analysis. Results. Results showed that none of the instruments were defect-free. The most common defect type was the presence of metal strips, which were noticed at the surface of all tested instruments. Debris was present on all manual and only one type of mechanical instruments, K3 (39% in the apical and 33% in the middle third). Fretting was noticed in all manual KF and all mechanical instruments of the K3 group. Pitting was common in all manual instruments, KF (33% in the apical and 39% in the middle third) and HF (11% in the apical and 6% in the middle third). Corrosion of the working surface, metal flash, and disruption of the cutting edge were marked only in the KF group. Conclusion. Manufacture defects were noticed in all instruments and the most common type of irregularity were metal strips. Electropolished surface of BioRaCe instruments showed no debris of organic origin., Uvod/Cilj Cilj ovog rada je bio da se primenom skenirajuće elektronske mikroskopije (SEM) analiziraju površine novih ručnih i mašinskih endodontskih instrumenata i proveri eventualno postojanje proizvodnih nečistoća ili defekata na radnom delu. Metode U istraživanju su korišćena po tri seta novih ručnih instrumenata: K-File, KF (Dentsply Maillefer, Švajcarska) i Hedstorm Files, HF (SybronEndo Co, SAD) i po tri seta mašinskih Ni-Ti instrumenata, tipa K3 (SybronEndo Co) i BioRaCe (FKG DENTAIRE Swiss Dental Products, Švajcarska). Instrumenti su podvrgnuti SEM analizi sa uvećanjem 170×, a semikvantitativnom, EDXS analizom utvrđivan je hemijski sastav nečistoće. Statistička analiza je urađena primenom Fišerovog testa (p < 0,05). Rezultati Rezultati su pokazali da ne postoji nijedan instrument bez defekta. Najučestaliji tip defekta je bilo prisustvo metalnih opiljaka, koji su uočeni na površini svih ispitivanih instrumenata. Debri je uočen na svim ručnim i samo na jednom tipu mašinskih instrumenata, K3 (39% na apikalnoj i 33% na srednjoj trećini). Žlebovi su uočeni na svim ručnim KF i svim mašinskim instrumentima grupe K3. Prisustvo udubljenja zabeleženo je kod ručnih instrumenata, KF (33% apikalna i 39% srednja trećina) i HF (11% apikalna i 6% srednja trećina). Korozija radne površine, pojava uglačane površine i prekid sečivne ivice su uočeni samo u grupi KF. Zaključak Na svim ispitivanim instrumentima su uočeni proizvodni defekti, a najučestaliji tip nepravilnosti su metalni opiljci. Na elektropoliranoj površini instrumenata BioRaCe nije uočeno prisustvo organskog debrija.",
publisher = "Srpsko lekarsko društvo, Beograd",
journal = "Srpski arhiv za celokupno lekarstvo",
title = "Analysis of working surface in new manual and rotary endodontic instruments (scanning electron microscopy), Analiza površine radnog dela novih ručnih i mašinskih endodontskih instrumenata (skenirajuća elektronska mikroskopija)",
volume = "148",
number = "7-8",
pages = "398-403",
doi = "10.2298/SARH190704018J"
}
Jovanović-Medojević, M., Pelemiš, M., Nešković, J., Popović-Bajić, M., Stratimirović, Đ.,& Živković, S.. (2020). Analysis of working surface in new manual and rotary endodontic instruments (scanning electron microscopy). in Srpski arhiv za celokupno lekarstvo
Srpsko lekarsko društvo, Beograd., 148(7-8), 398-403.
https://doi.org/10.2298/SARH190704018J
Jovanović-Medojević M, Pelemiš M, Nešković J, Popović-Bajić M, Stratimirović Đ, Živković S. Analysis of working surface in new manual and rotary endodontic instruments (scanning electron microscopy). in Srpski arhiv za celokupno lekarstvo. 2020;148(7-8):398-403.
doi:10.2298/SARH190704018J .
Jovanović-Medojević, Milica, Pelemiš, Martina, Nešković, Jelena, Popović-Bajić, Marijana, Stratimirović, Đorđe, Živković, Slavoljub, "Analysis of working surface in new manual and rotary endodontic instruments (scanning electron microscopy)" in Srpski arhiv za celokupno lekarstvo, 148, no. 7-8 (2020):398-403,
https://doi.org/10.2298/SARH190704018J . .
2
3

The influence of the final irrigation protocol on the efficiency of root canal cleaning

Nešković, Jelena; Ninković, Neda; Opačić-Galić, Vanja; Jovanović-Medojević, Milica; Popović-Bajić, Marijana; Maksimović, Miloš; Živković, Slavoljub

(Srpsko lekarsko društvo, Beograd, 2020)

TY  - JOUR
AU  - Nešković, Jelena
AU  - Ninković, Neda
AU  - Opačić-Galić, Vanja
AU  - Jovanović-Medojević, Milica
AU  - Popović-Bajić, Marijana
AU  - Maksimović, Miloš
AU  - Živković, Slavoljub
PY  - 2020
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2491
AB  - Introduction/Objective Irrigation has an important role in root canal cleaning and its efficiency depends on the type of irrigants, the amount, the technique and the irrigation protocol. The aim of this work was to estimate the efficiency of cleaning of the canal walls by using scanning electron microscope analysis after the instrumentation by rotary NiTi instruments with the use of three different irrigation solutions and two final irrigation protocols. Methods Sixty extracted human incisors were divided into two groups after the rotary instrumentation with the iRace instruments. In both groups, the same amount (1.5 ml) of three solutions (2% sodium hypochlorite solution, 2% chlorhexidine solution, and 10% citric acid solution) and total final irrigation time (90 seconds) was the same. The final irrigation in the first group was accomplished using the technique of continuous irrigation and in the second group it was done using the intermittent protocol. The roots were cut longitudinally and analyzed by thirds (coronal, middle, and apical) on a scanning electron microscope (JSM 6460LV, JEOL Ltd., Tokyo, Japan) with 1,000× magnification. Results the most efficient cleaning of the root canal walls in both groups was seen after the use of citric acid with the intermittent protocol of the final irrigation (90.7% clean walls), while the least efficient was the final irrigation by chlorhexidine with continuous irrigation (80.3%). The most efficient cleaning of the canal walls in both groups was observed in the coronal third and the largest amount of the smear layer in the apical third. Conclusion the most efficient cleaning of the canal was achieved by the use of citric acid and the intermittent protocol of the final irrigation. In all tested solutions, the intermittent protocol of irrigation was more efficient than continuous irrigation.
AB  - Uvod/Cilj Irigacija ima važnu ulogu u čišćenju kanala korena, a njena efikasnost zavisi od vrste irigansa, količine, odnosno tehnike i protokola irigacije. Cilj ovog rada bio je da se analizom SEM proceni efikasnost čišćenja zidova kanala posle instrumentacije rotirajućim NiTi instrumentima uz primenu tri različita rastvora za irigaciju i dva protokola finalne irigacije. Metode Šezdeset ekstrahovanih humanih sekutića je posle mašinske instrumentacije iRaCe instrumentima podeljeno u dve grupe. U obe grupe su korišćena po tri rastvora - 2% rastvor natrijum-hipohlorita, 2% rastvor hlorheksidina i 10% rastvor limunske kiseline, u istoj količini (1,5 ml) i ukupnom vremenu finalne irigacije (90 sekundi). Finalna irigacija u prvoj grupi je realizovana tehnikom kontinuirane, a u drugoj tehnikom intermitentne irigacije. Korenovi su presečeni uzdužno i analizirani po trećinama (krunična, srednja i apikalna) na skenirajućem elektronskom mikroskopu (JSM 6460LV JEOL, Tokio, Japan) na uveličanju od 1000×. Rezultati Najefikasnije čišćenje zidova kanala korena u obe grupe uočeno je posle primene limunske kiseline uz intermitentni protokol finalne irigacije (90,7% čistih zidova), dok je najmanje efikasna bila finalna irigacija hlorheksidinom uz kontinuiranu irigaciju (80,3%). Najefikasnije čišćenje zidova kanala i u prvoj i u drugoj grupi uočeno je u kruničnoj trećini, a najviše razmaznog sloja u apikalnoj trećini. Zaključak Najefikasnije čišćenje kanala ostvareno je primenom limunske kiseline i intermitentnog protokola finalne irigacije. Kod svih testiranih rastvora intermitentni protokol irigacije je bio nešto efikasniji od protokola kontinuirane irigacije.
PB  - Srpsko lekarsko društvo, Beograd
T2  - Srpski arhiv za celokupno lekarstvo
T1  - The influence of the final irrigation protocol on the efficiency of root canal cleaning
T1  - Uticaj protokola finalne irigacije na efikasnost čišćenja kanala korena
VL  - 148
IS  - 1-2
SP  - 10
EP  - 16
DO  - 10.2298/SARH190513132N
ER  - 
@article{
author = "Nešković, Jelena and Ninković, Neda and Opačić-Galić, Vanja and Jovanović-Medojević, Milica and Popović-Bajić, Marijana and Maksimović, Miloš and Živković, Slavoljub",
year = "2020",
abstract = "Introduction/Objective Irrigation has an important role in root canal cleaning and its efficiency depends on the type of irrigants, the amount, the technique and the irrigation protocol. The aim of this work was to estimate the efficiency of cleaning of the canal walls by using scanning electron microscope analysis after the instrumentation by rotary NiTi instruments with the use of three different irrigation solutions and two final irrigation protocols. Methods Sixty extracted human incisors were divided into two groups after the rotary instrumentation with the iRace instruments. In both groups, the same amount (1.5 ml) of three solutions (2% sodium hypochlorite solution, 2% chlorhexidine solution, and 10% citric acid solution) and total final irrigation time (90 seconds) was the same. The final irrigation in the first group was accomplished using the technique of continuous irrigation and in the second group it was done using the intermittent protocol. The roots were cut longitudinally and analyzed by thirds (coronal, middle, and apical) on a scanning electron microscope (JSM 6460LV, JEOL Ltd., Tokyo, Japan) with 1,000× magnification. Results the most efficient cleaning of the root canal walls in both groups was seen after the use of citric acid with the intermittent protocol of the final irrigation (90.7% clean walls), while the least efficient was the final irrigation by chlorhexidine with continuous irrigation (80.3%). The most efficient cleaning of the canal walls in both groups was observed in the coronal third and the largest amount of the smear layer in the apical third. Conclusion the most efficient cleaning of the canal was achieved by the use of citric acid and the intermittent protocol of the final irrigation. In all tested solutions, the intermittent protocol of irrigation was more efficient than continuous irrigation., Uvod/Cilj Irigacija ima važnu ulogu u čišćenju kanala korena, a njena efikasnost zavisi od vrste irigansa, količine, odnosno tehnike i protokola irigacije. Cilj ovog rada bio je da se analizom SEM proceni efikasnost čišćenja zidova kanala posle instrumentacije rotirajućim NiTi instrumentima uz primenu tri različita rastvora za irigaciju i dva protokola finalne irigacije. Metode Šezdeset ekstrahovanih humanih sekutića je posle mašinske instrumentacije iRaCe instrumentima podeljeno u dve grupe. U obe grupe su korišćena po tri rastvora - 2% rastvor natrijum-hipohlorita, 2% rastvor hlorheksidina i 10% rastvor limunske kiseline, u istoj količini (1,5 ml) i ukupnom vremenu finalne irigacije (90 sekundi). Finalna irigacija u prvoj grupi je realizovana tehnikom kontinuirane, a u drugoj tehnikom intermitentne irigacije. Korenovi su presečeni uzdužno i analizirani po trećinama (krunična, srednja i apikalna) na skenirajućem elektronskom mikroskopu (JSM 6460LV JEOL, Tokio, Japan) na uveličanju od 1000×. Rezultati Najefikasnije čišćenje zidova kanala korena u obe grupe uočeno je posle primene limunske kiseline uz intermitentni protokol finalne irigacije (90,7% čistih zidova), dok je najmanje efikasna bila finalna irigacija hlorheksidinom uz kontinuiranu irigaciju (80,3%). Najefikasnije čišćenje zidova kanala i u prvoj i u drugoj grupi uočeno je u kruničnoj trećini, a najviše razmaznog sloja u apikalnoj trećini. Zaključak Najefikasnije čišćenje kanala ostvareno je primenom limunske kiseline i intermitentnog protokola finalne irigacije. Kod svih testiranih rastvora intermitentni protokol irigacije je bio nešto efikasniji od protokola kontinuirane irigacije.",
publisher = "Srpsko lekarsko društvo, Beograd",
journal = "Srpski arhiv za celokupno lekarstvo",
title = "The influence of the final irrigation protocol on the efficiency of root canal cleaning, Uticaj protokola finalne irigacije na efikasnost čišćenja kanala korena",
volume = "148",
number = "1-2",
pages = "10-16",
doi = "10.2298/SARH190513132N"
}
Nešković, J., Ninković, N., Opačić-Galić, V., Jovanović-Medojević, M., Popović-Bajić, M., Maksimović, M.,& Živković, S.. (2020). The influence of the final irrigation protocol on the efficiency of root canal cleaning. in Srpski arhiv za celokupno lekarstvo
Srpsko lekarsko društvo, Beograd., 148(1-2), 10-16.
https://doi.org/10.2298/SARH190513132N
Nešković J, Ninković N, Opačić-Galić V, Jovanović-Medojević M, Popović-Bajić M, Maksimović M, Živković S. The influence of the final irrigation protocol on the efficiency of root canal cleaning. in Srpski arhiv za celokupno lekarstvo. 2020;148(1-2):10-16.
doi:10.2298/SARH190513132N .
Nešković, Jelena, Ninković, Neda, Opačić-Galić, Vanja, Jovanović-Medojević, Milica, Popović-Bajić, Marijana, Maksimović, Miloš, Živković, Slavoljub, "The influence of the final irrigation protocol on the efficiency of root canal cleaning" in Srpski arhiv za celokupno lekarstvo, 148, no. 1-2 (2020):10-16,
https://doi.org/10.2298/SARH190513132N . .
3
2

The efficiency of canal cleaning with reciprocating movements instruments: SEM study

Živković, Slavoljub; Nešković, Jelena; Popović-Bajić, Marijana; Jovanović-Medojević, Milica

(Srpsko lekarsko društvo, Beograd, 2020)

TY  - JOUR
AU  - Živković, Slavoljub
AU  - Nešković, Jelena
AU  - Popović-Bajić, Marijana
AU  - Jovanović-Medojević, Milica
PY  - 2020
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2489
AB  - Introduction/Objective The application of nickel-titanium (NiTi) instruments in cleaning and shaping of the root canal system is a standard and a precondition for the success of endodontic treatment. The objective of this study was to use scanning electron microscopy (SEM) analysis in order to examine the efficiency of cleaning the apical third of the root canal system using two different NiTi systems with reciprocating movements. Methods The study included 20 single-rooted teeth (premolars) divided into two groups. In group 1, the canal preparation was realized with a single file UNICONE with reciprocating movements (MEDIN, Inc., Nové Město na Moravě, Czech Republic), and in group 2, with a RECIPROC BLUE instrument with reciprocating movements (VDW GmbH, Munich, Germany). The same quantities of 2% NaOCl solution and 17% EDTA solution were used as irrigation solutions. The samples prepared for SEM analysis of the smear layer in the apical third were evaluated on a scale of 1-5 and at a magnification of 1,000×. Results SEM analysis pointed to mostly clean canal walls in the apical segment in both tested groups. Slightly cleaner walls were observed after the application of the UNICONE file (78%) compared to the samples of the second group, where the instrumentation was realized by the RECIPROC BLUE file (76%), but without statistically significant differences. Conclusion Single-file reciprocating systems do not remove the smear layer completely, but provide efficient cleaning of the apical region of the canal.
AB  - Uvod/Cilj Primena instrumenata od legure nikl-titanijum (NiTi) u čišćenju i oblikovanju kanala je standard i preduslov za uspeh endodontskog tretmana. Cilj ovog rada je bio da se analizom skenirajućim elektronskim mikroskopom (SEM) proveri efikasnost čišćenja apikalne trećine kanala primenom dva različita NiTi sistema sa recipročnim pokretima. Metode U istraživanje je uključeno 20 jednokorenih zuba (pretkutnjaka) podeljenih u dve grupe. Preparacija kanala u prvoj grupi je realizovana jednom turpijom sa recipročnim pokretima UNICONE (MEDIN, Nove Mjesto u Moravskoj, Češka), a u drugoj instrumentom sa recipročnim pokretima RECIPROC BLUE (VDW Gmbh, Minhen, Nemačka). Kao rastvori za irigaciju korišćene su iste količine 2% rastvora NaOCl i 17% rastvor EDTA. Uzorci pripremljeni za analizu SEM razmaznog sloja u apikalnoj trećini su evoluirani prema skali 1-5 i na uveličanju od 1000×. Rezultati Analiza SEM je ukazala na uglavnom čiste zidove kanala u apeksnom segmentu u obe testirane grupe. Nešto čistiji zidovi uočeni su posle primene turpije UNICON (78%) u odnosu na uzorke druge grupe, gde je instrumentacija realizovana turpijom RECIPROC BLUE (76%), ali bez statistički značajnih razlika. Zaključak Recipročni sistemi sa jednom turpijom ne uklanjaju potpuno razmazni sloj, ali obezbeđuju efikasno čišćenje apikalne regije kanala.
PB  - Srpsko lekarsko društvo, Beograd
T2  - Srpski arhiv za celokupno lekarstvo
T1  - The efficiency of canal cleaning with reciprocating movements instruments: SEM study
T1  - Efikasnost čišćenja kanala instrumentima sa recipročnim pokretima - studija SEM
VL  - 148
IS  - 3-4
SP  - 148
EP  - 152
DO  - 10.2298/SARH190412002Z
ER  - 
@article{
author = "Živković, Slavoljub and Nešković, Jelena and Popović-Bajić, Marijana and Jovanović-Medojević, Milica",
year = "2020",
abstract = "Introduction/Objective The application of nickel-titanium (NiTi) instruments in cleaning and shaping of the root canal system is a standard and a precondition for the success of endodontic treatment. The objective of this study was to use scanning electron microscopy (SEM) analysis in order to examine the efficiency of cleaning the apical third of the root canal system using two different NiTi systems with reciprocating movements. Methods The study included 20 single-rooted teeth (premolars) divided into two groups. In group 1, the canal preparation was realized with a single file UNICONE with reciprocating movements (MEDIN, Inc., Nové Město na Moravě, Czech Republic), and in group 2, with a RECIPROC BLUE instrument with reciprocating movements (VDW GmbH, Munich, Germany). The same quantities of 2% NaOCl solution and 17% EDTA solution were used as irrigation solutions. The samples prepared for SEM analysis of the smear layer in the apical third were evaluated on a scale of 1-5 and at a magnification of 1,000×. Results SEM analysis pointed to mostly clean canal walls in the apical segment in both tested groups. Slightly cleaner walls were observed after the application of the UNICONE file (78%) compared to the samples of the second group, where the instrumentation was realized by the RECIPROC BLUE file (76%), but without statistically significant differences. Conclusion Single-file reciprocating systems do not remove the smear layer completely, but provide efficient cleaning of the apical region of the canal., Uvod/Cilj Primena instrumenata od legure nikl-titanijum (NiTi) u čišćenju i oblikovanju kanala je standard i preduslov za uspeh endodontskog tretmana. Cilj ovog rada je bio da se analizom skenirajućim elektronskim mikroskopom (SEM) proveri efikasnost čišćenja apikalne trećine kanala primenom dva različita NiTi sistema sa recipročnim pokretima. Metode U istraživanje je uključeno 20 jednokorenih zuba (pretkutnjaka) podeljenih u dve grupe. Preparacija kanala u prvoj grupi je realizovana jednom turpijom sa recipročnim pokretima UNICONE (MEDIN, Nove Mjesto u Moravskoj, Češka), a u drugoj instrumentom sa recipročnim pokretima RECIPROC BLUE (VDW Gmbh, Minhen, Nemačka). Kao rastvori za irigaciju korišćene su iste količine 2% rastvora NaOCl i 17% rastvor EDTA. Uzorci pripremljeni za analizu SEM razmaznog sloja u apikalnoj trećini su evoluirani prema skali 1-5 i na uveličanju od 1000×. Rezultati Analiza SEM je ukazala na uglavnom čiste zidove kanala u apeksnom segmentu u obe testirane grupe. Nešto čistiji zidovi uočeni su posle primene turpije UNICON (78%) u odnosu na uzorke druge grupe, gde je instrumentacija realizovana turpijom RECIPROC BLUE (76%), ali bez statistički značajnih razlika. Zaključak Recipročni sistemi sa jednom turpijom ne uklanjaju potpuno razmazni sloj, ali obezbeđuju efikasno čišćenje apikalne regije kanala.",
publisher = "Srpsko lekarsko društvo, Beograd",
journal = "Srpski arhiv za celokupno lekarstvo",
title = "The efficiency of canal cleaning with reciprocating movements instruments: SEM study, Efikasnost čišćenja kanala instrumentima sa recipročnim pokretima - studija SEM",
volume = "148",
number = "3-4",
pages = "148-152",
doi = "10.2298/SARH190412002Z"
}
Živković, S., Nešković, J., Popović-Bajić, M.,& Jovanović-Medojević, M.. (2020). The efficiency of canal cleaning with reciprocating movements instruments: SEM study. in Srpski arhiv za celokupno lekarstvo
Srpsko lekarsko društvo, Beograd., 148(3-4), 148-152.
https://doi.org/10.2298/SARH190412002Z
Živković S, Nešković J, Popović-Bajić M, Jovanović-Medojević M. The efficiency of canal cleaning with reciprocating movements instruments: SEM study. in Srpski arhiv za celokupno lekarstvo. 2020;148(3-4):148-152.
doi:10.2298/SARH190412002Z .
Živković, Slavoljub, Nešković, Jelena, Popović-Bajić, Marijana, Jovanović-Medojević, Milica, "The efficiency of canal cleaning with reciprocating movements instruments: SEM study" in Srpski arhiv za celokupno lekarstvo, 148, no. 3-4 (2020):148-152,
https://doi.org/10.2298/SARH190412002Z . .
6
2
4

Toxicological profile of nanostructured bone substitute based on hydroxyapatite and poly(Lactide-co-glycolide) after subchronic oral exposure of rats

Paraš, S.; Trišić, Dijana; Ajtić, O.M.; Prokić, B.; Drobne, D.; Živković, Slavoljub; Jokanović, Vukoman

(Mdpi Ag, 2020)

TY  - JOUR
AU  - Paraš, S.
AU  - Trišić, Dijana
AU  - Ajtić, O.M.
AU  - Prokić, B.
AU  - Drobne, D.
AU  - Živković, Slavoljub
AU  - Jokanović, Vukoman
PY  - 2020
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2478
AB  - Novel three-dimensional (3D) nanohydroxyapatite-PLGA scaffolds with high porosity was developed to better mimic mineral component and microstructure of natural bone. To perform a final assessment of this nanomaterial as a potential bone substitute, its toxicological profile was particularly investigated. Therefore, we performed a comet assay on human monocytes for in vitro genotoxicity investigation, and the systemic subchronic toxicity investigation on rats being per oral feed with exactly administrated extract quantities of the nano calcium hydroxyapatite covered with tiny layers of PLGA (ALBO-OS) for 120 days. Histological and stereological parameters of the liver, kidney, and spleen tissue were analyzed. Comet assay revealed low genotoxic potential, while histological analysis and stereological investigation revealed no significant changes in exposed animals when compared to controls, although the volume density of blood sinusoids and connective tissue, as well as numerical density and number of mitosis were slightly increased. Additionally, despite the significantly increased average number of the Ki67 and slightly increased number of CD68 positive cells in the presence of ALBO-OS, immunoreactive cells proliferation was almost neglected. Blood analyses showed that all of the blood parameters in rats fed with extract nanomaterial are comparable with corresponding parameters of no feed rats, taken as blind probe. This study contributes to the toxicological profiling of ALBO-OS scaffold for potential future application in bone tissue engineering.
PB  - Mdpi Ag
T2  - Nanomaterials
T1  - Toxicological profile of nanostructured bone substitute based on hydroxyapatite and poly(Lactide-co-glycolide) after subchronic oral exposure of rats
VL  - 10
IS  - 5
DO  - 10.3390/nano10050918
ER  - 
@article{
author = "Paraš, S. and Trišić, Dijana and Ajtić, O.M. and Prokić, B. and Drobne, D. and Živković, Slavoljub and Jokanović, Vukoman",
year = "2020",
abstract = "Novel three-dimensional (3D) nanohydroxyapatite-PLGA scaffolds with high porosity was developed to better mimic mineral component and microstructure of natural bone. To perform a final assessment of this nanomaterial as a potential bone substitute, its toxicological profile was particularly investigated. Therefore, we performed a comet assay on human monocytes for in vitro genotoxicity investigation, and the systemic subchronic toxicity investigation on rats being per oral feed with exactly administrated extract quantities of the nano calcium hydroxyapatite covered with tiny layers of PLGA (ALBO-OS) for 120 days. Histological and stereological parameters of the liver, kidney, and spleen tissue were analyzed. Comet assay revealed low genotoxic potential, while histological analysis and stereological investigation revealed no significant changes in exposed animals when compared to controls, although the volume density of blood sinusoids and connective tissue, as well as numerical density and number of mitosis were slightly increased. Additionally, despite the significantly increased average number of the Ki67 and slightly increased number of CD68 positive cells in the presence of ALBO-OS, immunoreactive cells proliferation was almost neglected. Blood analyses showed that all of the blood parameters in rats fed with extract nanomaterial are comparable with corresponding parameters of no feed rats, taken as blind probe. This study contributes to the toxicological profiling of ALBO-OS scaffold for potential future application in bone tissue engineering.",
publisher = "Mdpi Ag",
journal = "Nanomaterials",
title = "Toxicological profile of nanostructured bone substitute based on hydroxyapatite and poly(Lactide-co-glycolide) after subchronic oral exposure of rats",
volume = "10",
number = "5",
doi = "10.3390/nano10050918"
}
Paraš, S., Trišić, D., Ajtić, O.M., Prokić, B., Drobne, D., Živković, S.,& Jokanović, V.. (2020). Toxicological profile of nanostructured bone substitute based on hydroxyapatite and poly(Lactide-co-glycolide) after subchronic oral exposure of rats. in Nanomaterials
Mdpi Ag., 10(5).
https://doi.org/10.3390/nano10050918
Paraš S, Trišić D, Ajtić O, Prokić B, Drobne D, Živković S, Jokanović V. Toxicological profile of nanostructured bone substitute based on hydroxyapatite and poly(Lactide-co-glycolide) after subchronic oral exposure of rats. in Nanomaterials. 2020;10(5).
doi:10.3390/nano10050918 .
Paraš, S., Trišić, Dijana, Ajtić, O.M., Prokić, B., Drobne, D., Živković, Slavoljub, Jokanović, Vukoman, "Toxicological profile of nanostructured bone substitute based on hydroxyapatite and poly(Lactide-co-glycolide) after subchronic oral exposure of rats" in Nanomaterials, 10, no. 5 (2020),
https://doi.org/10.3390/nano10050918 . .
4
3
3

Efficiency of XP endo Shaper (XPS) and irrigation protocol on the quality of cleaning the apical third of root canal: SEM study

Živković, Slavoljub; Jovanović-Medojević, Milica; Nešković, Jelena; Popović-Bajić, Marijana; Živković-Sandić, Marija

(Udruženje stomatologa Balkana, 2019)

TY  - JOUR
AU  - Živković, Slavoljub
AU  - Jovanović-Medojević, Milica
AU  - Nešković, Jelena
AU  - Popović-Bajić, Marijana
AU  - Živković-Sandić, Marija
PY  - 2019
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2402
AB  - Background/Aim: The aim of this study was to evaluate the efficacy of new rotary NiTi instrument XP-endo SHAPER (XPS) used with two irrigation protocols on the root canal cleaning in the apical area. Material and Methods: The research was conducted on 30 single-rooted teeth extracted for orthodontic reasons which were divided into the two groups. Instrumentation of the canals was conducted with XPS instrument and 2% solution of NaOCl was used as irrigant. Instrumentation in the first group was performed using a conventional continuous irrigation, in the second group, protocol of final irrigation was performed intermittently in 3 cycles. The SEM analysis of the apical third of the canal was performed on longitudinal root cross-section standardized photomicrography with a magnification of 2000X. Results: Results showed that a thicker smear layer was observed in the first group and with continuous irrigation protocol (2,10) in relation to the intermittent irrigation protocol in 3 cycles (1,96), but without significant differences. The walls of the root canal in the apical third of the samples of the second group were slightly cleaner (73.3%) in comparison with the teeth of the first group (64, 7%), but also without significant differences. Conclusions: The use of XPS and 2% solution of NaOCl in the root canal enables efficient cleaning of the apical third of tooth. The final irrigation protocol in three cycles improves the efficiency of the smear layer removal in the apical segment of the canal.
PB  - Udruženje stomatologa Balkana
T2  - Balkan Journal of Dental Medicine
T1  - Efficiency of XP endo Shaper (XPS) and irrigation protocol on the quality of cleaning the apical third of root canal: SEM study
VL  - 23
IS  - 1
SP  - 31
EP  - 35
DO  - 10.2478/bjdm-2019-0006
ER  - 
@article{
author = "Živković, Slavoljub and Jovanović-Medojević, Milica and Nešković, Jelena and Popović-Bajić, Marijana and Živković-Sandić, Marija",
year = "2019",
abstract = "Background/Aim: The aim of this study was to evaluate the efficacy of new rotary NiTi instrument XP-endo SHAPER (XPS) used with two irrigation protocols on the root canal cleaning in the apical area. Material and Methods: The research was conducted on 30 single-rooted teeth extracted for orthodontic reasons which were divided into the two groups. Instrumentation of the canals was conducted with XPS instrument and 2% solution of NaOCl was used as irrigant. Instrumentation in the first group was performed using a conventional continuous irrigation, in the second group, protocol of final irrigation was performed intermittently in 3 cycles. The SEM analysis of the apical third of the canal was performed on longitudinal root cross-section standardized photomicrography with a magnification of 2000X. Results: Results showed that a thicker smear layer was observed in the first group and with continuous irrigation protocol (2,10) in relation to the intermittent irrigation protocol in 3 cycles (1,96), but without significant differences. The walls of the root canal in the apical third of the samples of the second group were slightly cleaner (73.3%) in comparison with the teeth of the first group (64, 7%), but also without significant differences. Conclusions: The use of XPS and 2% solution of NaOCl in the root canal enables efficient cleaning of the apical third of tooth. The final irrigation protocol in three cycles improves the efficiency of the smear layer removal in the apical segment of the canal.",
publisher = "Udruženje stomatologa Balkana",
journal = "Balkan Journal of Dental Medicine",
title = "Efficiency of XP endo Shaper (XPS) and irrigation protocol on the quality of cleaning the apical third of root canal: SEM study",
volume = "23",
number = "1",
pages = "31-35",
doi = "10.2478/bjdm-2019-0006"
}
Živković, S., Jovanović-Medojević, M., Nešković, J., Popović-Bajić, M.,& Živković-Sandić, M.. (2019). Efficiency of XP endo Shaper (XPS) and irrigation protocol on the quality of cleaning the apical third of root canal: SEM study. in Balkan Journal of Dental Medicine
Udruženje stomatologa Balkana., 23(1), 31-35.
https://doi.org/10.2478/bjdm-2019-0006
Živković S, Jovanović-Medojević M, Nešković J, Popović-Bajić M, Živković-Sandić M. Efficiency of XP endo Shaper (XPS) and irrigation protocol on the quality of cleaning the apical third of root canal: SEM study. in Balkan Journal of Dental Medicine. 2019;23(1):31-35.
doi:10.2478/bjdm-2019-0006 .
Živković, Slavoljub, Jovanović-Medojević, Milica, Nešković, Jelena, Popović-Bajić, Marijana, Živković-Sandić, Marija, "Efficiency of XP endo Shaper (XPS) and irrigation protocol on the quality of cleaning the apical third of root canal: SEM study" in Balkan Journal of Dental Medicine, 23, no. 1 (2019):31-35,
https://doi.org/10.2478/bjdm-2019-0006 . .
2

A new endodontic mixture based on calcium aluminate cement obtained by hydrothermal synthesis

Čolović, Božana; Janković, Ognjenka; Živković, Slavoljub; Zizak, Zeljko; Zizak, Irina Besu; Jokanović, Vukoman

(Elsevier Sci Ltd, Oxford, 2019)

TY  - JOUR
AU  - Čolović, Božana
AU  - Janković, Ognjenka
AU  - Živković, Slavoljub
AU  - Zizak, Zeljko
AU  - Zizak, Irina Besu
AU  - Jokanović, Vukoman
PY  - 2019
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2442
AB  - The synthesis of a new endodontic mixture based on calcium aluminate cement is reported. Physico-chemical and mechanical properties of the mixture were investigated before and after various hydration periods. Phase analysis of the mixture was performed using X-ray diffraction (XRD), while morphological analysis was performed by scanning electron microscopy (SEM) equipped with EDS which revealed elemental composition of the mixture sample. Investigations of mechanical properties showed that this new endodontic mixture possessed good mechanical properties (compressive strength after 28 days aging was 94 MPa) and relatively short setting time (2 h). Additionally, cytotoxicity of the mixture was investigated by MTT assay, while genotoxicity was investigated by Comet assay, using MRC-5 cell line. The obtained results make this material very promising for potential application in dental practice.
PB  - Elsevier Sci Ltd, Oxford
T2  - Ceramics International
T1  - A new endodontic mixture based on calcium aluminate cement obtained by hydrothermal synthesis
VL  - 45
IS  - 7
SP  - 9211
EP  - 9218
DO  - 10.1016/j.ceramint.2019.01.266
ER  - 
@article{
author = "Čolović, Božana and Janković, Ognjenka and Živković, Slavoljub and Zizak, Zeljko and Zizak, Irina Besu and Jokanović, Vukoman",
year = "2019",
abstract = "The synthesis of a new endodontic mixture based on calcium aluminate cement is reported. Physico-chemical and mechanical properties of the mixture were investigated before and after various hydration periods. Phase analysis of the mixture was performed using X-ray diffraction (XRD), while morphological analysis was performed by scanning electron microscopy (SEM) equipped with EDS which revealed elemental composition of the mixture sample. Investigations of mechanical properties showed that this new endodontic mixture possessed good mechanical properties (compressive strength after 28 days aging was 94 MPa) and relatively short setting time (2 h). Additionally, cytotoxicity of the mixture was investigated by MTT assay, while genotoxicity was investigated by Comet assay, using MRC-5 cell line. The obtained results make this material very promising for potential application in dental practice.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Ceramics International",
title = "A new endodontic mixture based on calcium aluminate cement obtained by hydrothermal synthesis",
volume = "45",
number = "7",
pages = "9211-9218",
doi = "10.1016/j.ceramint.2019.01.266"
}
Čolović, B., Janković, O., Živković, S., Zizak, Z., Zizak, I. B.,& Jokanović, V.. (2019). A new endodontic mixture based on calcium aluminate cement obtained by hydrothermal synthesis. in Ceramics International
Elsevier Sci Ltd, Oxford., 45(7), 9211-9218.
https://doi.org/10.1016/j.ceramint.2019.01.266
Čolović B, Janković O, Živković S, Zizak Z, Zizak IB, Jokanović V. A new endodontic mixture based on calcium aluminate cement obtained by hydrothermal synthesis. in Ceramics International. 2019;45(7):9211-9218.
doi:10.1016/j.ceramint.2019.01.266 .
Čolović, Božana, Janković, Ognjenka, Živković, Slavoljub, Zizak, Zeljko, Zizak, Irina Besu, Jokanović, Vukoman, "A new endodontic mixture based on calcium aluminate cement obtained by hydrothermal synthesis" in Ceramics International, 45, no. 7 (2019):9211-9218,
https://doi.org/10.1016/j.ceramint.2019.01.266 . .
6
2
3

Antibacterial activity of newly synthesized endodontic nanomaterial based on calcium aluminate

Radović, Igor; Stojanović, Nikola; Krunić, Jelena; Davidović, Lado; Lečić, Jelena; Jokanović, Vukoman; Živković, Slavoljub

(Srpsko lekarsko društvo - Stomatološka sekcija, Beograd, 2019)

TY  - JOUR
AU  - Radović, Igor
AU  - Stojanović, Nikola
AU  - Krunić, Jelena
AU  - Davidović, Lado
AU  - Lečić, Jelena
AU  - Jokanović, Vukoman
AU  - Živković, Slavoljub
PY  - 2019
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2430
AB  - Introduction Materials used for root canal obturation and root perforation are expected to have, in addition to preventing apical, lateral and coronary leakage, antimicrobial effects on microorganisms that are not accessible to chemomechanical instrumentation and intra-canal medications. The aim of this study was to evaluate the antimicrobial effect of a novel calcium aluminate-based endodontic nanostructured biomaterial (ALBO-MCCA) using agar diffusion test. Material and methods the two materials were tested in the study. The nanostructured calcium aluminate was synthesized by the hydrothermal sol-gel method from individual components of calcium aluminate (CaOxAl2 O3 ), calcite (CaCO3 ) and barium sulfate (BaSO4 ) as radiocontrast agent in the ratio of 2:2:1 according to V. Jokanovic's recipe. The other used material was calcium silicate MTA Angelus (Londrina, Brazil). The antimicrobial effect was assessed using agar diffusion test. Standard strains of Enterococcus faecalis, Escherichia coli, Staphylococcus aureus, cultured on blood Mueller-Hinton agar and Candida albicans cultivated on Sabouraud Dextrose Agar, were used as test microorganisms. Results the best antimicrobial effect after 24 h both materials showed against S. aureus. The mean values of the growth inhibition zone for ALBO MCCA were 5.7 ± 0.25 mm and MTA 6.2 ± 0.4 mm. The ALBO MCCA material showed slightly stronger antibacterial effect against E. coli compared to MTA (p  lt  0.05), whereas none of the materials showed antibacterial effect against E. faecalis. Conclusion the ALBO MCCA material showed certain antibacterial effect on Escherichia coli, Staphylococcus aureus and Candida albicans that was comparable to antibacterial effect of MTA.
AB  - Uvod Od materijala koji se koriste za opturaciju kanala korena i perforacija na korenu se očekuje da pored sprečavanja apikalnog, lateralnog i koronarnog curenja, poseduju i antimikrobno delovanje na mikroorganizme, koji nisu dostupni hemomehaničkoj obradi i intrakanalnim medikamentima. Cilj ovog istraživanja je bio da se testom difuzije u agaru proceni antimikrobni efekat novog endodontskog nanostrukturnog biomaterijala na bazi kalcijum-aluminata (ALBO-MCCA). Materijal i metode U istraživanju su korišćena dva materijala. Nanostrukturni kalcijum-aluminat je sintetisan hidrotermalnom sol-gel metodom od pojedinačnih komponenata kalcijum-aluminata (CaO·Al2 O3 ), kalcita (CaCO3 ) i barijum-sulfata (BaSO4 ) kao rendgen-kontrastnog sredstva u odnosu 2 : 2 : 1 prema recepturi V. Jokanovića. Drugi korišćeni materijal je kalcijum-silikatni MTA Angelus (Londrina, Brazil). Antimikrobni efekat je ispitivan testom difuzije u agaru. Kao test mikroorganizmi korišćeni su standardni sojevi Enterococcus faecalis, Escherichia coli, Staphylococcus aureus, koji su kultivisani na krvnom agaru MuellerHinton, dok je C. albicans kultivisana na agaru Sabouraud Dextrose. Rezultati Najbolji antimikrobni efekat nakon 24 h oba materijala su pokazala prema bakteriji S. aureus. Izmerene prosečne vrednosti zone inhibicije rasta iznosile su kod ALBO-MCCA (5,7 ± 0,25 mm), odnosno kod MTA (6,2 ± 0,4 mm). Materijal ALBO-MCCA je pokazao nešto veći antibakterijski efekat prema bakteriji E. coli u odnosu na MTA (p  lt  0,05), dok prema bakteriji E. faecalis nijedan materijal nije ispoljio antibakterijski efekat. Zaključak Materijal ALBO-MCCA je ispoljio određeni antibakterijski efekat na bakterije Escherichia coli, Staphylococcus aureus i Candida albicans komparabilan sa antibakterijskim efektom MTA.
PB  - Srpsko lekarsko društvo - Stomatološka sekcija, Beograd
T2  - Stomatološki glasnik Srbije
T1  - Antibacterial activity of newly synthesized endodontic nanomaterial based on calcium aluminate
T1  - Antimikrobna aktivnost novosintetisanog endodontskog nanomaterijala na bazi kalcijum-aluminata
VL  - 66
IS  - 3
SP  - 113
EP  - 119
DO  - 10.2478/sdj-2019-0012
ER  - 
@article{
author = "Radović, Igor and Stojanović, Nikola and Krunić, Jelena and Davidović, Lado and Lečić, Jelena and Jokanović, Vukoman and Živković, Slavoljub",
year = "2019",
abstract = "Introduction Materials used for root canal obturation and root perforation are expected to have, in addition to preventing apical, lateral and coronary leakage, antimicrobial effects on microorganisms that are not accessible to chemomechanical instrumentation and intra-canal medications. The aim of this study was to evaluate the antimicrobial effect of a novel calcium aluminate-based endodontic nanostructured biomaterial (ALBO-MCCA) using agar diffusion test. Material and methods the two materials were tested in the study. The nanostructured calcium aluminate was synthesized by the hydrothermal sol-gel method from individual components of calcium aluminate (CaOxAl2 O3 ), calcite (CaCO3 ) and barium sulfate (BaSO4 ) as radiocontrast agent in the ratio of 2:2:1 according to V. Jokanovic's recipe. The other used material was calcium silicate MTA Angelus (Londrina, Brazil). The antimicrobial effect was assessed using agar diffusion test. Standard strains of Enterococcus faecalis, Escherichia coli, Staphylococcus aureus, cultured on blood Mueller-Hinton agar and Candida albicans cultivated on Sabouraud Dextrose Agar, were used as test microorganisms. Results the best antimicrobial effect after 24 h both materials showed against S. aureus. The mean values of the growth inhibition zone for ALBO MCCA were 5.7 ± 0.25 mm and MTA 6.2 ± 0.4 mm. The ALBO MCCA material showed slightly stronger antibacterial effect against E. coli compared to MTA (p  lt  0.05), whereas none of the materials showed antibacterial effect against E. faecalis. Conclusion the ALBO MCCA material showed certain antibacterial effect on Escherichia coli, Staphylococcus aureus and Candida albicans that was comparable to antibacterial effect of MTA., Uvod Od materijala koji se koriste za opturaciju kanala korena i perforacija na korenu se očekuje da pored sprečavanja apikalnog, lateralnog i koronarnog curenja, poseduju i antimikrobno delovanje na mikroorganizme, koji nisu dostupni hemomehaničkoj obradi i intrakanalnim medikamentima. Cilj ovog istraživanja je bio da se testom difuzije u agaru proceni antimikrobni efekat novog endodontskog nanostrukturnog biomaterijala na bazi kalcijum-aluminata (ALBO-MCCA). Materijal i metode U istraživanju su korišćena dva materijala. Nanostrukturni kalcijum-aluminat je sintetisan hidrotermalnom sol-gel metodom od pojedinačnih komponenata kalcijum-aluminata (CaO·Al2 O3 ), kalcita (CaCO3 ) i barijum-sulfata (BaSO4 ) kao rendgen-kontrastnog sredstva u odnosu 2 : 2 : 1 prema recepturi V. Jokanovića. Drugi korišćeni materijal je kalcijum-silikatni MTA Angelus (Londrina, Brazil). Antimikrobni efekat je ispitivan testom difuzije u agaru. Kao test mikroorganizmi korišćeni su standardni sojevi Enterococcus faecalis, Escherichia coli, Staphylococcus aureus, koji su kultivisani na krvnom agaru MuellerHinton, dok je C. albicans kultivisana na agaru Sabouraud Dextrose. Rezultati Najbolji antimikrobni efekat nakon 24 h oba materijala su pokazala prema bakteriji S. aureus. Izmerene prosečne vrednosti zone inhibicije rasta iznosile su kod ALBO-MCCA (5,7 ± 0,25 mm), odnosno kod MTA (6,2 ± 0,4 mm). Materijal ALBO-MCCA je pokazao nešto veći antibakterijski efekat prema bakteriji E. coli u odnosu na MTA (p  lt  0,05), dok prema bakteriji E. faecalis nijedan materijal nije ispoljio antibakterijski efekat. Zaključak Materijal ALBO-MCCA je ispoljio određeni antibakterijski efekat na bakterije Escherichia coli, Staphylococcus aureus i Candida albicans komparabilan sa antibakterijskim efektom MTA.",
publisher = "Srpsko lekarsko društvo - Stomatološka sekcija, Beograd",
journal = "Stomatološki glasnik Srbije",
title = "Antibacterial activity of newly synthesized endodontic nanomaterial based on calcium aluminate, Antimikrobna aktivnost novosintetisanog endodontskog nanomaterijala na bazi kalcijum-aluminata",
volume = "66",
number = "3",
pages = "113-119",
doi = "10.2478/sdj-2019-0012"
}
Radović, I., Stojanović, N., Krunić, J., Davidović, L., Lečić, J., Jokanović, V.,& Živković, S.. (2019). Antibacterial activity of newly synthesized endodontic nanomaterial based on calcium aluminate. in Stomatološki glasnik Srbije
Srpsko lekarsko društvo - Stomatološka sekcija, Beograd., 66(3), 113-119.
https://doi.org/10.2478/sdj-2019-0012
Radović I, Stojanović N, Krunić J, Davidović L, Lečić J, Jokanović V, Živković S. Antibacterial activity of newly synthesized endodontic nanomaterial based on calcium aluminate. in Stomatološki glasnik Srbije. 2019;66(3):113-119.
doi:10.2478/sdj-2019-0012 .
Radović, Igor, Stojanović, Nikola, Krunić, Jelena, Davidović, Lado, Lečić, Jelena, Jokanović, Vukoman, Živković, Slavoljub, "Antibacterial activity of newly synthesized endodontic nanomaterial based on calcium aluminate" in Stomatološki glasnik Srbije, 66, no. 3 (2019):113-119,
https://doi.org/10.2478/sdj-2019-0012 . .

Magnetron sputtering methods for surface modification of shape memory alloys for applications in orthodontics and endodontics

Jokanović, Vukoman; Čolović, Božana; Ćetenović, Bojana; Živković, Slavoljub

(Srpsko lekarsko društvo - Stomatološka sekcija, Beograd, 2019)

TY  - JOUR
AU  - Jokanović, Vukoman
AU  - Čolović, Božana
AU  - Ćetenović, Bojana
AU  - Živković, Slavoljub
PY  - 2019
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2427
AB  - Various magnetron-sputtering methods for surface modification of shape memory alloys (SMA) are described in this paper. These methods belong to the most effective methods, which enable mechanical reinforcing of the SMA, showing numerous advantages over conventional methods of electro-polishing. In addition, surface modified SMA, particularly with equiatomic TiNi coatings, is crucial for further development of various endodontic instruments; wires and brackets used for orthodontic teeth movements. Active coatings with bactericide properties and coatings that can be used as barrier for release of toxic Ni ions from the bulk body of SMA obtained by various magnetron-sputtering methods can be successfully combined. Therefore, the review of these methods is given in this paper, with their main characteristics and drawbacks. Magnetron sputtering deposition involves surface modification of SMA in a single-layer, multilayer, graded layers, and nanocomposite thin coatings for obtaining systems with superior "functional" characteristics. These are hardness, scratch, abrasion, and erosion resistance, improved adhesion to various technologically important substrate materials such as polymers, hydrophobicity or hydrophilicity, long-term chemical, thermal, and environmental stability, gas and vapor impermeability, and others. This paper is critical review of the advances in the development of magnetron sputtering modified SMA products in dentistry, with in advance predictable physicochemical, structural and antimicrobial properties.
AB  - U ovom radu su opisane različite metode magnetronskog raspršivanja za površinsku modifikaciju memorijskih legura (shape memory alloys - SMA). Ove metode spadaju u najefikasnije metode koje omogućavaju mehaničko ojačavanje SMA, pokazujući brojne prednosti u odnosu na konvencionalne metode elektropoliranja, koje su najčešće korišćene u savremenoj ortodontskoj i endodontskoj praksi. Pored toga, površinski modifikovane SMA, posebno sa ekviatomskim Ti i Ni udelima unutar prevlake, presudne su za dalji razvoj različitih endodontskih instrumenata, žica i konzola koje se koriste za ortodontska pomeranja zuba. Aktivne prevlake sa baktericidnim svojstvima i prevlake koje služe kao barijere protiv otpuštanja toksičnih Ni jona iz SMA unutar organizma mogu biti dobijene različitim metodama magnetronskog raspršivanja, pri čemu se različite varijante ove metode mogu uspešno kombinovati. Zbog svega toga u ovom radu je dat pregled ovih metoda, sa njihovim glavnim karakteristikama i nedostacima. Magnetronsko nanošenje raspršivanjem uključuje površinsku modifikaciju SMA u jednoslojnim, višeslojnim, gradiranim slojevima i nanokompozitne tanke prevlake za dobijanje sistema sa superiornim "funkcionalnim" karakteristikama, kao što su vrlo visoka tvrdoća, otpornost na habanje, abraziju i eroziju, poboljšano prijanjanje na različite tehnološki važne supstratne materijale kao što su polimeri, hidrofobnost ili hidrofilnost, dugotrajna hemijska, termička i ekološka stabilnost, nepropusnost gasa i para i drugi. Ovaj rad predstavlja neku vrstu kritičkog pregleda napretka u razvoju magnetronskog raspršivanja modifikovanih SMA proizvoda u stomatologiji, sa unapred predvidljivim fizičko-hemijskim, strukturnim i antimikrobnim osobinama.
PB  - Srpsko lekarsko društvo - Stomatološka sekcija, Beograd
T2  - Stomatološki glasnik Srbije
T1  - Magnetron sputtering methods for surface modification of shape memory alloys for applications in orthodontics and endodontics
T1  - Metode magnetronskog raspršivanja za površinsku modifikaciju memorijskih legura za primenu u ortodonciji i endodonciji
VL  - 66
IS  - 2
SP  - 87
EP  - 96
DO  - 10.2478/sdj-2019-0010
ER  - 
@article{
author = "Jokanović, Vukoman and Čolović, Božana and Ćetenović, Bojana and Živković, Slavoljub",
year = "2019",
abstract = "Various magnetron-sputtering methods for surface modification of shape memory alloys (SMA) are described in this paper. These methods belong to the most effective methods, which enable mechanical reinforcing of the SMA, showing numerous advantages over conventional methods of electro-polishing. In addition, surface modified SMA, particularly with equiatomic TiNi coatings, is crucial for further development of various endodontic instruments; wires and brackets used for orthodontic teeth movements. Active coatings with bactericide properties and coatings that can be used as barrier for release of toxic Ni ions from the bulk body of SMA obtained by various magnetron-sputtering methods can be successfully combined. Therefore, the review of these methods is given in this paper, with their main characteristics and drawbacks. Magnetron sputtering deposition involves surface modification of SMA in a single-layer, multilayer, graded layers, and nanocomposite thin coatings for obtaining systems with superior "functional" characteristics. These are hardness, scratch, abrasion, and erosion resistance, improved adhesion to various technologically important substrate materials such as polymers, hydrophobicity or hydrophilicity, long-term chemical, thermal, and environmental stability, gas and vapor impermeability, and others. This paper is critical review of the advances in the development of magnetron sputtering modified SMA products in dentistry, with in advance predictable physicochemical, structural and antimicrobial properties., U ovom radu su opisane različite metode magnetronskog raspršivanja za površinsku modifikaciju memorijskih legura (shape memory alloys - SMA). Ove metode spadaju u najefikasnije metode koje omogućavaju mehaničko ojačavanje SMA, pokazujući brojne prednosti u odnosu na konvencionalne metode elektropoliranja, koje su najčešće korišćene u savremenoj ortodontskoj i endodontskoj praksi. Pored toga, površinski modifikovane SMA, posebno sa ekviatomskim Ti i Ni udelima unutar prevlake, presudne su za dalji razvoj različitih endodontskih instrumenata, žica i konzola koje se koriste za ortodontska pomeranja zuba. Aktivne prevlake sa baktericidnim svojstvima i prevlake koje služe kao barijere protiv otpuštanja toksičnih Ni jona iz SMA unutar organizma mogu biti dobijene različitim metodama magnetronskog raspršivanja, pri čemu se različite varijante ove metode mogu uspešno kombinovati. Zbog svega toga u ovom radu je dat pregled ovih metoda, sa njihovim glavnim karakteristikama i nedostacima. Magnetronsko nanošenje raspršivanjem uključuje površinsku modifikaciju SMA u jednoslojnim, višeslojnim, gradiranim slojevima i nanokompozitne tanke prevlake za dobijanje sistema sa superiornim "funkcionalnim" karakteristikama, kao što su vrlo visoka tvrdoća, otpornost na habanje, abraziju i eroziju, poboljšano prijanjanje na različite tehnološki važne supstratne materijale kao što su polimeri, hidrofobnost ili hidrofilnost, dugotrajna hemijska, termička i ekološka stabilnost, nepropusnost gasa i para i drugi. Ovaj rad predstavlja neku vrstu kritičkog pregleda napretka u razvoju magnetronskog raspršivanja modifikovanih SMA proizvoda u stomatologiji, sa unapred predvidljivim fizičko-hemijskim, strukturnim i antimikrobnim osobinama.",
publisher = "Srpsko lekarsko društvo - Stomatološka sekcija, Beograd",
journal = "Stomatološki glasnik Srbije",
title = "Magnetron sputtering methods for surface modification of shape memory alloys for applications in orthodontics and endodontics, Metode magnetronskog raspršivanja za površinsku modifikaciju memorijskih legura za primenu u ortodonciji i endodonciji",
volume = "66",
number = "2",
pages = "87-96",
doi = "10.2478/sdj-2019-0010"
}
Jokanović, V., Čolović, B., Ćetenović, B.,& Živković, S.. (2019). Magnetron sputtering methods for surface modification of shape memory alloys for applications in orthodontics and endodontics. in Stomatološki glasnik Srbije
Srpsko lekarsko društvo - Stomatološka sekcija, Beograd., 66(2), 87-96.
https://doi.org/10.2478/sdj-2019-0010
Jokanović V, Čolović B, Ćetenović B, Živković S. Magnetron sputtering methods for surface modification of shape memory alloys for applications in orthodontics and endodontics. in Stomatološki glasnik Srbije. 2019;66(2):87-96.
doi:10.2478/sdj-2019-0010 .
Jokanović, Vukoman, Čolović, Božana, Ćetenović, Bojana, Živković, Slavoljub, "Magnetron sputtering methods for surface modification of shape memory alloys for applications in orthodontics and endodontics" in Stomatološki glasnik Srbije, 66, no. 2 (2019):87-96,
https://doi.org/10.2478/sdj-2019-0010 . .

Influence of nanostructured calcium aluminate and calcium silicate on the liver: histological and unbiased stereological analysis

Paras, S.; Janković, Ognjenka; Trišić, Dijana; Čolović, Božana; Mitrović-Ajtić, O.; Dekić, R.; Soldatović, Ivan; Živković-Sandić, Marija; Živković, Slavoljub; Jokanović, Vukoman

(Wiley, Hoboken, 2019)

TY  - JOUR
AU  - Paras, S.
AU  - Janković, Ognjenka
AU  - Trišić, Dijana
AU  - Čolović, Božana
AU  - Mitrović-Ajtić, O.
AU  - Dekić, R.
AU  - Soldatović, Ivan
AU  - Živković-Sandić, Marija
AU  - Živković, Slavoljub
AU  - Jokanović, Vukoman
PY  - 2019
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2393
AB  - Aim To examine the potential systemic toxicity of nanostructured materials based on calcium silicate and calcium aluminate, for potential application in Dentistry. Methodology Twenty-four Albino Wistar rats aged 2 months were used as an in vivo animal model for subcutaneous implantation of the investigated materials, placed in polyethylene tubes. Thirty days after implantation, the livers of the rats were analysed and following histological and stereological parameters were evaluated for volume density of hepatocytes and blood sinusoids, number and numerical density of hepatocytes, surface of hepatocytes and their nucleuses, nucleocytoplasmic ratio and mitotic index of hepatocytes. Stereological measurements were achieved using Cavalieri's principle, with grid P2 and unbiased analysis. Additionally, immunohistochemistry studies were performed to further analyse changes in liver tissue. Several haematological and biochemical parameters of blood of experimental animals were also analysed, as well as local tissue reactions around the implants. Statistical analysis was performed using parametric (anova and t-test) and nonparametric tests (Kruskal-Wallis and Mann-Whitney U-test) depending on data distribution. Results Implanted dental cements led to an increase in stereological and histological parameters in liver tissue compared to control rats. Although the investigated parameters mostly showed significant differences between control and experimental animals, the liver tissue of the experimental animals did not have visible signs of pathological changes. This was supported by the analysis of blood parameters which were not significantly different between control and experimental animals. Also, the subcutaneous tissues had minimal inflammatory reactions. Immunohistochemistry studies revealed that nanostructured materials induced proliferation of hepatocytes, but that the immunological response to the materials was not strong enough to induce proliferation of immunoreactive cells in liver in the observed time period. Conclusions This study was performed as a contribution to the attestation of the biocompatibility of dental cements based on calcium silicate and calcium aluminate. Although these materials induced several changes in the liver structure, they were not clinically relevant and represent a normal and reversible response of the liver to the presence of biocompatible materials in the body. Blood and immunohistochemistry analyses and local tissue reactions further confirmed that these materials possess good biocompatible potential.
PB  - Wiley, Hoboken
T2  - International Endodontic Journal
T1  - Influence of nanostructured calcium aluminate and calcium silicate on the liver: histological and unbiased stereological analysis
VL  - 52
IS  - 8
SP  - 1162
EP  - 1172
DO  - 10.1111/iej.13105
ER  - 
@article{
author = "Paras, S. and Janković, Ognjenka and Trišić, Dijana and Čolović, Božana and Mitrović-Ajtić, O. and Dekić, R. and Soldatović, Ivan and Živković-Sandić, Marija and Živković, Slavoljub and Jokanović, Vukoman",
year = "2019",
abstract = "Aim To examine the potential systemic toxicity of nanostructured materials based on calcium silicate and calcium aluminate, for potential application in Dentistry. Methodology Twenty-four Albino Wistar rats aged 2 months were used as an in vivo animal model for subcutaneous implantation of the investigated materials, placed in polyethylene tubes. Thirty days after implantation, the livers of the rats were analysed and following histological and stereological parameters were evaluated for volume density of hepatocytes and blood sinusoids, number and numerical density of hepatocytes, surface of hepatocytes and their nucleuses, nucleocytoplasmic ratio and mitotic index of hepatocytes. Stereological measurements were achieved using Cavalieri's principle, with grid P2 and unbiased analysis. Additionally, immunohistochemistry studies were performed to further analyse changes in liver tissue. Several haematological and biochemical parameters of blood of experimental animals were also analysed, as well as local tissue reactions around the implants. Statistical analysis was performed using parametric (anova and t-test) and nonparametric tests (Kruskal-Wallis and Mann-Whitney U-test) depending on data distribution. Results Implanted dental cements led to an increase in stereological and histological parameters in liver tissue compared to control rats. Although the investigated parameters mostly showed significant differences between control and experimental animals, the liver tissue of the experimental animals did not have visible signs of pathological changes. This was supported by the analysis of blood parameters which were not significantly different between control and experimental animals. Also, the subcutaneous tissues had minimal inflammatory reactions. Immunohistochemistry studies revealed that nanostructured materials induced proliferation of hepatocytes, but that the immunological response to the materials was not strong enough to induce proliferation of immunoreactive cells in liver in the observed time period. Conclusions This study was performed as a contribution to the attestation of the biocompatibility of dental cements based on calcium silicate and calcium aluminate. Although these materials induced several changes in the liver structure, they were not clinically relevant and represent a normal and reversible response of the liver to the presence of biocompatible materials in the body. Blood and immunohistochemistry analyses and local tissue reactions further confirmed that these materials possess good biocompatible potential.",
publisher = "Wiley, Hoboken",
journal = "International Endodontic Journal",
title = "Influence of nanostructured calcium aluminate and calcium silicate on the liver: histological and unbiased stereological analysis",
volume = "52",
number = "8",
pages = "1162-1172",
doi = "10.1111/iej.13105"
}
Paras, S., Janković, O., Trišić, D., Čolović, B., Mitrović-Ajtić, O., Dekić, R., Soldatović, I., Živković-Sandić, M., Živković, S.,& Jokanović, V.. (2019). Influence of nanostructured calcium aluminate and calcium silicate on the liver: histological and unbiased stereological analysis. in International Endodontic Journal
Wiley, Hoboken., 52(8), 1162-1172.
https://doi.org/10.1111/iej.13105
Paras S, Janković O, Trišić D, Čolović B, Mitrović-Ajtić O, Dekić R, Soldatović I, Živković-Sandić M, Živković S, Jokanović V. Influence of nanostructured calcium aluminate and calcium silicate on the liver: histological and unbiased stereological analysis. in International Endodontic Journal. 2019;52(8):1162-1172.
doi:10.1111/iej.13105 .
Paras, S., Janković, Ognjenka, Trišić, Dijana, Čolović, Božana, Mitrović-Ajtić, O., Dekić, R., Soldatović, Ivan, Živković-Sandić, Marija, Živković, Slavoljub, Jokanović, Vukoman, "Influence of nanostructured calcium aluminate and calcium silicate on the liver: histological and unbiased stereological analysis" in International Endodontic Journal, 52, no. 8 (2019):1162-1172,
https://doi.org/10.1111/iej.13105 . .
12
6
10

Efficiency of root canal cleaning using a single instrument with reciprocating motion systems and full rotation systems: SEM study

Živković, Slavoljub; Nešković, Jelena; Jovanović-Medojević, Milica; Popović-Bajić, Marijana; Ostojić, Dejan

(Srpsko lekarsko društvo - Stomatološka sekcija, Beograd, 2018)

TY  - JOUR
AU  - Živković, Slavoljub
AU  - Nešković, Jelena
AU  - Jovanović-Medojević, Milica
AU  - Popović-Bajić, Marijana
AU  - Ostojić, Dejan
PY  - 2018
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2362
AB  - Introduction Efficient cleaning and canal design present a basic precondition for successful endodontic treatment. The aim of this study was to evaluate, using SEM analysis, the efficacy of cleaning the apical third of the canal with one instrument in both reciprocating motion and full rotation systems. Materials and methods Thirty (30) single-rooted teeth (upper incisors), extracted due to periodontal problems, were used and selected in 2 groups. In the group 1, instrumentation was done with a single instrument UNICONE with reciprocal movements (MEDIN, Czech Republic), while in the group 2, a single instrument XPS endo SHAPER (XPS) (FKG, Dentaire, Swiss) with full rotation was used. 2% solution of NaOCl and 17% EDTA solution were used as irrigation agents in both groups. SEM analysis of the smear layer in the apical third was done at standard magnification of 1000x and presented on a scale of 1-5. Results showed mostly clean canal walls and no smear layer in the apical region in both tested groups. Canal walls were somewhat cleaner after using UNICONE with reciprocal movements (80%) compared to the canals instrumented with XPS ENDO SHAPER (76%), but this difference was not statistically significant. Conclusion Single-file NiTi systems did not remove smear layer completely, but provided efficient cleaning in the api-cal part of the canal. UNICONE file with reciprocal movements was somewhat more efficient in removing the smear layer compared to the full rotation XPS ENDO SHAPER file.
AB  - Uvod Efikasno čišćenje I oblikovanje kanala je osnovni preduslov za uspeh endodontskog tretmana. Cilj ovog rada je bio da se SEM analizom proveri efikasnost čišćenja apikalne trećine kanala jednim instrumentom kod sistema sa recipročnim pokretima I sistema sa punom rotacijom. Materijal I metode Korišćeno je 30 jednokorenih zuba (gornji sekutići) ekstrahovanih zbog parodontalnih problema I podeljenih u dve grupe. U prvoj grupi preparacija kanala je realizovana instrumentom sa recipročnim pokretima - UNICONE (MEDIN, Czech Republic), a u drugoj instrumentom sa punom rotacijom - XP-endo Shaper (XPS) (FKG, DENTAIRE, Swiss). Kao sredstvo za irigaciju u obe grupe korišćen je 2% rastvor NaOCl I 17% rastvor EDTA. SEM analiza razmaznog sloja apikalne trećine je urađena na standardnom uvećanju od 1000× I procenjivana prema skali od 1 do 5. Rezultati Istraživanje je ukazalo na uglavnom čiste zidove kanala I bez razmaznog sloja u apikalnoj regiji u obe testirane grupe. Zidovi kanala su bili nešto čistiji posle primene instrumenta sa recipročnim pokretima - UNICONE (80%) u odnosu na kanale druge grupe gde je korišćen instrument sa punom rotacijom - XPS (76%), ali bez statistički značajnih razlika. Zaključak NiTi sistemi sa samo jednom turpijom ne uklanjaju potpuno razmazni sloj, ali obezbeđuju efikasno čišćenje apikalnog dela kanala. Turpija sa recipročnim pokretima UNICONE je bila nešto efikasnija u uklanjanju razmaznog sloja u odnosu na XPS turpiju sa punom rotacijom.
PB  - Srpsko lekarsko društvo - Stomatološka sekcija, Beograd
T2  - Stomatološki glasnik Srbije
T1  - Efficiency of root canal cleaning using a single instrument with reciprocating motion systems and full rotation systems: SEM study
T1  - Efikasnost čišćenja kanala jednim instrumentom kod sistema sa recipročnim pokretima i sistema sa punom rotacijom - SEM studija
VL  - 65
IS  - 4
SP  - 171
EP  - 178
UR  - https://hdl.handle.net/21.15107/rcub_smile_2362
ER  - 
@article{
author = "Živković, Slavoljub and Nešković, Jelena and Jovanović-Medojević, Milica and Popović-Bajić, Marijana and Ostojić, Dejan",
year = "2018",
abstract = "Introduction Efficient cleaning and canal design present a basic precondition for successful endodontic treatment. The aim of this study was to evaluate, using SEM analysis, the efficacy of cleaning the apical third of the canal with one instrument in both reciprocating motion and full rotation systems. Materials and methods Thirty (30) single-rooted teeth (upper incisors), extracted due to periodontal problems, were used and selected in 2 groups. In the group 1, instrumentation was done with a single instrument UNICONE with reciprocal movements (MEDIN, Czech Republic), while in the group 2, a single instrument XPS endo SHAPER (XPS) (FKG, Dentaire, Swiss) with full rotation was used. 2% solution of NaOCl and 17% EDTA solution were used as irrigation agents in both groups. SEM analysis of the smear layer in the apical third was done at standard magnification of 1000x and presented on a scale of 1-5. Results showed mostly clean canal walls and no smear layer in the apical region in both tested groups. Canal walls were somewhat cleaner after using UNICONE with reciprocal movements (80%) compared to the canals instrumented with XPS ENDO SHAPER (76%), but this difference was not statistically significant. Conclusion Single-file NiTi systems did not remove smear layer completely, but provided efficient cleaning in the api-cal part of the canal. UNICONE file with reciprocal movements was somewhat more efficient in removing the smear layer compared to the full rotation XPS ENDO SHAPER file., Uvod Efikasno čišćenje I oblikovanje kanala je osnovni preduslov za uspeh endodontskog tretmana. Cilj ovog rada je bio da se SEM analizom proveri efikasnost čišćenja apikalne trećine kanala jednim instrumentom kod sistema sa recipročnim pokretima I sistema sa punom rotacijom. Materijal I metode Korišćeno je 30 jednokorenih zuba (gornji sekutići) ekstrahovanih zbog parodontalnih problema I podeljenih u dve grupe. U prvoj grupi preparacija kanala je realizovana instrumentom sa recipročnim pokretima - UNICONE (MEDIN, Czech Republic), a u drugoj instrumentom sa punom rotacijom - XP-endo Shaper (XPS) (FKG, DENTAIRE, Swiss). Kao sredstvo za irigaciju u obe grupe korišćen je 2% rastvor NaOCl I 17% rastvor EDTA. SEM analiza razmaznog sloja apikalne trećine je urađena na standardnom uvećanju od 1000× I procenjivana prema skali od 1 do 5. Rezultati Istraživanje je ukazalo na uglavnom čiste zidove kanala I bez razmaznog sloja u apikalnoj regiji u obe testirane grupe. Zidovi kanala su bili nešto čistiji posle primene instrumenta sa recipročnim pokretima - UNICONE (80%) u odnosu na kanale druge grupe gde je korišćen instrument sa punom rotacijom - XPS (76%), ali bez statistički značajnih razlika. Zaključak NiTi sistemi sa samo jednom turpijom ne uklanjaju potpuno razmazni sloj, ali obezbeđuju efikasno čišćenje apikalnog dela kanala. Turpija sa recipročnim pokretima UNICONE je bila nešto efikasnija u uklanjanju razmaznog sloja u odnosu na XPS turpiju sa punom rotacijom.",
publisher = "Srpsko lekarsko društvo - Stomatološka sekcija, Beograd",
journal = "Stomatološki glasnik Srbije",
title = "Efficiency of root canal cleaning using a single instrument with reciprocating motion systems and full rotation systems: SEM study, Efikasnost čišćenja kanala jednim instrumentom kod sistema sa recipročnim pokretima i sistema sa punom rotacijom - SEM studija",
volume = "65",
number = "4",
pages = "171-178",
url = "https://hdl.handle.net/21.15107/rcub_smile_2362"
}
Živković, S., Nešković, J., Jovanović-Medojević, M., Popović-Bajić, M.,& Ostojić, D.. (2018). Efficiency of root canal cleaning using a single instrument with reciprocating motion systems and full rotation systems: SEM study. in Stomatološki glasnik Srbije
Srpsko lekarsko društvo - Stomatološka sekcija, Beograd., 65(4), 171-178.
https://hdl.handle.net/21.15107/rcub_smile_2362
Živković S, Nešković J, Jovanović-Medojević M, Popović-Bajić M, Ostojić D. Efficiency of root canal cleaning using a single instrument with reciprocating motion systems and full rotation systems: SEM study. in Stomatološki glasnik Srbije. 2018;65(4):171-178.
https://hdl.handle.net/21.15107/rcub_smile_2362 .
Živković, Slavoljub, Nešković, Jelena, Jovanović-Medojević, Milica, Popović-Bajić, Marijana, Ostojić, Dejan, "Efficiency of root canal cleaning using a single instrument with reciprocating motion systems and full rotation systems: SEM study" in Stomatološki glasnik Srbije, 65, no. 4 (2018):171-178,
https://hdl.handle.net/21.15107/rcub_smile_2362 .

Microbiological status of root canal after unsuccessful endodontic treatment

Nešković, Jelena; Jovanović-Medojević, Milica; Grga, Đurica; Popović, Branka; Živković, Slavoljub

(Srpsko lekarsko društvo - Stomatološka sekcija, Beograd, 2018)

TY  - JOUR
AU  - Nešković, Jelena
AU  - Jovanović-Medojević, Milica
AU  - Grga, Đurica
AU  - Popović, Branka
AU  - Živković, Slavoljub
PY  - 2018
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2360
AB  - Introduction the main objective of endodontic treatment is to eliminate infection from root canal and prevent re-infection by three-dimensional hermetic obturation of the canal system. Endodontic failure can occur due to inability of complete control and elimination of infection from the root canal. The aim of this study is to investigate, by PCR technique, microbiological status of previously endodontically unsuccessfully treated teeth immediately after the removal of obturation material. Material and Methods the analysis included 30 teeth indicated for endodontic retreatment. After removing previous root canal filling material, the bacteriological sample was taken by sterile instrument (# 15) and paper points. Standard PCR technique was used to analyze the incidence of E.faecalis, P.micros, P.intermedia, P. endodontalis and a.actinomycetemcomitans. Results Positive bacteriological findings were registered in 80% of cases, while bacteria were not identified in 20% of all samples (all taken from the root canals without significant changes in periapical tissue). From 24 canals with identified bacteria, 17 had affected apical periodontium. The most dominant microbe in root canals with positive bacteriological finding was E.faecalis (83.3% of the canals) and P.intermedia (75%). In case of teeth with chronic periapical changes, the most common was E. faecalis (94%) and P.intermedia (82.3%). Conclusion the presence of periapical lesions significantly affects microbiological status of endodontically treated teeth. The presence of bacteria was confirmed in most teeth with periapical lesions, while the most frequently identified bacteria were E. faecalis, P.intermedia and P.micros.
AB  - Uvod Osnovni zadatak endodontskog tretmana je da eliminiše infekciju iz kanala korena I spreči reinfekciju trodimenzionalnom hermetičkom opturacijom kanalskog sistema. Usled nemogućnosti potpune kontrole I eliminacije infekcije iz kanala korena može doći do pojave endodontskog neuspeha. Cilj ovog rada je bio da se neposredno posle uklanjanja materijala za opturaciju kod zuba sa neuspelim endodontskim lečenjem PCR tehnikom proveri mikrobiološki status endodontski lečenih zuba. Metode Mikrobiološka studija je obuhvatila 30 zuba (osam višekorenih I 22 jednokorena) indikovanih za ponovljeni endodontski tretman. Posle dezinfekcije radnog polja I dezopturacije koja je urađena isključivo mehaničkim putem, uzorak je uzet sterilnim kanalnim instrumentom tipa pulpekstirpatora (#15) ili Hoedstrem-turpije (#15) I uz pomoć papirnih poena kojima je sušen kanal. Ependorfice su čuvane na temperaturi od -20˚C do mikrobiološke analize. Putem klasičnog PCR analizirana je zastupljenost bakterija: Enterococcus faecalis, Peptostreptococcus micros, Prevotela intermedia, Porphyromonas endodontalis I Actinobacilus actinomicetemcomitans. Rezultati Pozitivan bakteriološki nalaz registrovan je u 80% slučajeva, dok bakterije nisu identifikovane u 20% uzoraka. Svi negativni uzorci su uzeti iz kanala korena zuba bez značajnih promena u apeksnom periodoncijumu, dok je 17 od 24 kanala sa identifikovanim bakterijama pripadalo zubima sa oštećenim apeksnim parodoncijumom. Najprisutniji mikroorganizam u kanalima sa pozitivnim bakteriološkim nalazom bio je E. faecalis, koji je identifikovan u 83,3% kanala, zatim P. inermedia sa 75% I P. micros sa zastupljenošću od 58,3%. Kod zuba sa hroničnim periapikalnim promenama najzastupljeniji je bio E. faecalis, koji je identifikovan u 94% kanala, zatim P. intermedia, koja je bila prisutna u 82,3% uzoraka. Mikroorganizmi E. faecalis I P. intermedia su registrovani kod svih pacijenata sa nekim od simptoma. Zaključak Prisustvo periapikalnih lezija značajno utiče na mikrobiološki status kanala korena endodontski lečenih zuba. Prisustvo bakterija u kanalima korena potvrđeno je u većini endodontski neuspešno lečenih zuba, a najčećše identifikovane bakterije bile su E. faecalis, zatim P. intermedia, P. micros I P. endodontalis.
PB  - Srpsko lekarsko društvo - Stomatološka sekcija, Beograd
T2  - Stomatološki glasnik Srbije
T1  - Microbiological status of root canal after unsuccessful endodontic treatment
T1  - Mikrobiloški status kanala korena endodonski neuspešno lečenih zuba
VL  - 65
IS  - 4
SP  - 195
EP  - 204
UR  - https://hdl.handle.net/21.15107/rcub_smile_2360
ER  - 
@article{
author = "Nešković, Jelena and Jovanović-Medojević, Milica and Grga, Đurica and Popović, Branka and Živković, Slavoljub",
year = "2018",
abstract = "Introduction the main objective of endodontic treatment is to eliminate infection from root canal and prevent re-infection by three-dimensional hermetic obturation of the canal system. Endodontic failure can occur due to inability of complete control and elimination of infection from the root canal. The aim of this study is to investigate, by PCR technique, microbiological status of previously endodontically unsuccessfully treated teeth immediately after the removal of obturation material. Material and Methods the analysis included 30 teeth indicated for endodontic retreatment. After removing previous root canal filling material, the bacteriological sample was taken by sterile instrument (# 15) and paper points. Standard PCR technique was used to analyze the incidence of E.faecalis, P.micros, P.intermedia, P. endodontalis and a.actinomycetemcomitans. Results Positive bacteriological findings were registered in 80% of cases, while bacteria were not identified in 20% of all samples (all taken from the root canals without significant changes in periapical tissue). From 24 canals with identified bacteria, 17 had affected apical periodontium. The most dominant microbe in root canals with positive bacteriological finding was E.faecalis (83.3% of the canals) and P.intermedia (75%). In case of teeth with chronic periapical changes, the most common was E. faecalis (94%) and P.intermedia (82.3%). Conclusion the presence of periapical lesions significantly affects microbiological status of endodontically treated teeth. The presence of bacteria was confirmed in most teeth with periapical lesions, while the most frequently identified bacteria were E. faecalis, P.intermedia and P.micros., Uvod Osnovni zadatak endodontskog tretmana je da eliminiše infekciju iz kanala korena I spreči reinfekciju trodimenzionalnom hermetičkom opturacijom kanalskog sistema. Usled nemogućnosti potpune kontrole I eliminacije infekcije iz kanala korena može doći do pojave endodontskog neuspeha. Cilj ovog rada je bio da se neposredno posle uklanjanja materijala za opturaciju kod zuba sa neuspelim endodontskim lečenjem PCR tehnikom proveri mikrobiološki status endodontski lečenih zuba. Metode Mikrobiološka studija je obuhvatila 30 zuba (osam višekorenih I 22 jednokorena) indikovanih za ponovljeni endodontski tretman. Posle dezinfekcije radnog polja I dezopturacije koja je urađena isključivo mehaničkim putem, uzorak je uzet sterilnim kanalnim instrumentom tipa pulpekstirpatora (#15) ili Hoedstrem-turpije (#15) I uz pomoć papirnih poena kojima je sušen kanal. Ependorfice su čuvane na temperaturi od -20˚C do mikrobiološke analize. Putem klasičnog PCR analizirana je zastupljenost bakterija: Enterococcus faecalis, Peptostreptococcus micros, Prevotela intermedia, Porphyromonas endodontalis I Actinobacilus actinomicetemcomitans. Rezultati Pozitivan bakteriološki nalaz registrovan je u 80% slučajeva, dok bakterije nisu identifikovane u 20% uzoraka. Svi negativni uzorci su uzeti iz kanala korena zuba bez značajnih promena u apeksnom periodoncijumu, dok je 17 od 24 kanala sa identifikovanim bakterijama pripadalo zubima sa oštećenim apeksnim parodoncijumom. Najprisutniji mikroorganizam u kanalima sa pozitivnim bakteriološkim nalazom bio je E. faecalis, koji je identifikovan u 83,3% kanala, zatim P. inermedia sa 75% I P. micros sa zastupljenošću od 58,3%. Kod zuba sa hroničnim periapikalnim promenama najzastupljeniji je bio E. faecalis, koji je identifikovan u 94% kanala, zatim P. intermedia, koja je bila prisutna u 82,3% uzoraka. Mikroorganizmi E. faecalis I P. intermedia su registrovani kod svih pacijenata sa nekim od simptoma. Zaključak Prisustvo periapikalnih lezija značajno utiče na mikrobiološki status kanala korena endodontski lečenih zuba. Prisustvo bakterija u kanalima korena potvrđeno je u većini endodontski neuspešno lečenih zuba, a najčećše identifikovane bakterije bile su E. faecalis, zatim P. intermedia, P. micros I P. endodontalis.",
publisher = "Srpsko lekarsko društvo - Stomatološka sekcija, Beograd",
journal = "Stomatološki glasnik Srbije",
title = "Microbiological status of root canal after unsuccessful endodontic treatment, Mikrobiloški status kanala korena endodonski neuspešno lečenih zuba",
volume = "65",
number = "4",
pages = "195-204",
url = "https://hdl.handle.net/21.15107/rcub_smile_2360"
}
Nešković, J., Jovanović-Medojević, M., Grga, Đ., Popović, B.,& Živković, S.. (2018). Microbiological status of root canal after unsuccessful endodontic treatment. in Stomatološki glasnik Srbije
Srpsko lekarsko društvo - Stomatološka sekcija, Beograd., 65(4), 195-204.
https://hdl.handle.net/21.15107/rcub_smile_2360
Nešković J, Jovanović-Medojević M, Grga Đ, Popović B, Živković S. Microbiological status of root canal after unsuccessful endodontic treatment. in Stomatološki glasnik Srbije. 2018;65(4):195-204.
https://hdl.handle.net/21.15107/rcub_smile_2360 .
Nešković, Jelena, Jovanović-Medojević, Milica, Grga, Đurica, Popović, Branka, Živković, Slavoljub, "Microbiological status of root canal after unsuccessful endodontic treatment" in Stomatološki glasnik Srbije, 65, no. 4 (2018):195-204,
https://hdl.handle.net/21.15107/rcub_smile_2360 .

Physical properties and biocompatibility of nanostructural biomaterials based on active calcium silicate systems and hydroxyapatite

Opačić-Galić, Vanja; Petrović, Violeta; Popović-Bajić, Marijana; Jokanović, Vukoman; Živković, Slavoljub; Nikolić, Biljana; Mitić-Ćulafić, Dragana

(Springer International Publishing, 2018)

TY  - CHAP
AU  - Opačić-Galić, Vanja
AU  - Petrović, Violeta
AU  - Popović-Bajić, Marijana
AU  - Jokanović, Vukoman
AU  - Živković, Slavoljub
AU  - Nikolić, Biljana
AU  - Mitić-Ćulafić, Dragana
PY  - 2018
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2371
PB  - Springer International Publishing
T2  - Dental Applications of Nanotechnology
T1  - Physical properties and biocompatibility of nanostructural biomaterials based on active calcium silicate systems and hydroxyapatite
SP  - 247
EP  - 271
DO  - 10.1007/978-3-319-97634-1_13
ER  - 
@inbook{
author = "Opačić-Galić, Vanja and Petrović, Violeta and Popović-Bajić, Marijana and Jokanović, Vukoman and Živković, Slavoljub and Nikolić, Biljana and Mitić-Ćulafić, Dragana",
year = "2018",
publisher = "Springer International Publishing",
journal = "Dental Applications of Nanotechnology",
booktitle = "Physical properties and biocompatibility of nanostructural biomaterials based on active calcium silicate systems and hydroxyapatite",
pages = "247-271",
doi = "10.1007/978-3-319-97634-1_13"
}
Opačić-Galić, V., Petrović, V., Popović-Bajić, M., Jokanović, V., Živković, S., Nikolić, B.,& Mitić-Ćulafić, D.. (2018). Physical properties and biocompatibility of nanostructural biomaterials based on active calcium silicate systems and hydroxyapatite. in Dental Applications of Nanotechnology
Springer International Publishing., 247-271.
https://doi.org/10.1007/978-3-319-97634-1_13
Opačić-Galić V, Petrović V, Popović-Bajić M, Jokanović V, Živković S, Nikolić B, Mitić-Ćulafić D. Physical properties and biocompatibility of nanostructural biomaterials based on active calcium silicate systems and hydroxyapatite. in Dental Applications of Nanotechnology. 2018;:247-271.
doi:10.1007/978-3-319-97634-1_13 .
Opačić-Galić, Vanja, Petrović, Violeta, Popović-Bajić, Marijana, Jokanović, Vukoman, Živković, Slavoljub, Nikolić, Biljana, Mitić-Ćulafić, Dragana, "Physical properties and biocompatibility of nanostructural biomaterials based on active calcium silicate systems and hydroxyapatite" in Dental Applications of Nanotechnology (2018):247-271,
https://doi.org/10.1007/978-3-319-97634-1_13 . .
2
1

Compressive strength of calcium silicate-based cement

Opačić-Galić, Vanja; Stamenić, Zoran; Petrović, Violeta; Jokanović, Vukoman; Živković, Slavoljub

(Srpsko lekarsko društvo - Stomatološka sekcija, Beograd, 2018)

TY  - JOUR
AU  - Opačić-Galić, Vanja
AU  - Stamenić, Zoran
AU  - Petrović, Violeta
AU  - Jokanović, Vukoman
AU  - Živković, Slavoljub
PY  - 2018
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2358
AB  - Introduction The aim of this study was to compare compressive strength (Cs) of new nanostructural calcium silicate based cement (nCS) with commercial calcium silicate cement and conventional GIC. Methods Four nanostructural materials were tested: nanostructural calcium silicate based cement (nCS) (Jokanović et al.), MTA Plus (Cerkamed, Poland), Fuji IX (GC Corporation, Japan) and Ketac Universal Aplicap (3M ESPE, USA). Five samples of each material were mixed in accordance with manifecturer's guidelines and positioned in metal moulds (ϕ4mm and 6mm). Compressive strength (Cs) expressed in MPa was determined after 24 hours, 7 days and 28 days respectively. Measurements were performed on universal testing equipment (Tinius Olsen, USA) at a crosshead speed of 1mm/min. For processing the results one-way ANOVA and post-hoc test were used. Results The highest values of compressive strength after 24h was found in conventional GIC Fuji IX (mean 38.56±13.31) and Ketac Universal (mean 40.77±7.96). Calcium silicate cements after 24h showed low values of compressive strength (MTA Plus 5.91±0.28 MPa, nCS 1.35±0.36 MPa). After 7 days, FUJI IX 47.42±9.33 MPa and Ketac Universal 35.25±10.60 MPa showed higher value of compressive strength than MTA Plus (15.09±2.77 MPa) and nCS (11.06±0.88 MPa). After 28 days the Cs value for conventional GIC Fuji IX was 48.03±7.82 MPa and Ketac Universal 36.65±11.13 MPa while for calcium silicate cements it was 16.47±1.89 MPa and nCS 14.39±1.63 MPa. There was statistically significant difference (p lt 0.05) in Cs between conventional GIC and CS cements after 24h, 7 and 28 days. Conclusions Calcium silicate cements initially showed lower values of compressive strength than conventional GIC that increased over time.
AB  - Uvod Cilj ovog rada je bio da se proveri kompresivna čvrstoća (KČ) novog nanostrukturnog kalcijum-silikatnog cementa (nCS) i uporedi sa komercijalnim kalcijum-silikatnim cementom i konvencionalnim GJC u funkciji vremena. Materijal i metod Testirana su četiri materijala - nanostrukturni CS (Jokanović i sar.), MTA Plus (Cerkamed, Poland), Fuji IX (GC Corporation, Japan) and Ketac Universal Aplicap (3M ESPE, USA). Po pet uzoraka za svaki materijal je zamešano po proizvođačkom uputstvu i postavljano u metalne kalupe (ϕ 4 mm i 6 mm visoke). KČ, izražena u megapaskalima, merena je posle 24 sata i posle 7 i 28 dana na univerzalnoj test mašini (Tinius Olsen, USA) sa brzinom utiskivača od 1 mm/min. Dobijeni rezultati su statistički obrađeni one-way ANOVA i post hoc Tukey, s testovima. Resultati Posle 24 sata najveću KČ imao je FUJI IX (38,56 ± 13,31 MPa), zatim Ketac Univerzal (40,77 ± 7,96 MPa). Kalcijum-silikatni cementi su pokazali niže vrednosti KČ 24 sata posle mešanja i to MTA 5,91 ± 0,28, a nCS 1,35 ± 0,36 MPa. Posle sedam dana KČ za FUJI IX je bila 47,72 ± 9,33 MPa, a za Ketac Universal 35,25 ± 10,60 MPa, dok je vrednost za MTA bila 15,09 ± 2,77 MPa, a nCS 11,06 ± 0,88. Posle 28 dana KČ za FUJI IX je bila 48,03 ± 7,82 MPa, a za Ketac 36,65 ± 11,13 MPa. KČ kalcijum-silikatnih cemenata posle 28 dana je bila 16,47 ± 1,89 za MTA, a za nCS 14,39 ± 1,63 MPa, bez statističi značajne razlike između njih. Između konvencionalnih GJC i CS cemenata postoji statistički značajna razlika (p  lt  0,05) posle 24 h, kao i posle 7 i 28 dana. Zaključak Kalcijum-silikatni cementi su inicijalno pokazali niže vrednosti KČ u odnosu na konvencionalne GJC, ali su se one povećavale u funkciji vremena.
PB  - Srpsko lekarsko društvo - Stomatološka sekcija, Beograd
T2  - Stomatološki glasnik Srbije
T1  - Compressive strength of calcium silicate-based cement
T1  - Ispitivanje kompresivne čvrstoće kalcijum-silikatnih cemenata
VL  - 65
IS  - 1
SP  - 7
EP  - 13
DO  - 10.2478/sdj-2018-0001
ER  - 
@article{
author = "Opačić-Galić, Vanja and Stamenić, Zoran and Petrović, Violeta and Jokanović, Vukoman and Živković, Slavoljub",
year = "2018",
abstract = "Introduction The aim of this study was to compare compressive strength (Cs) of new nanostructural calcium silicate based cement (nCS) with commercial calcium silicate cement and conventional GIC. Methods Four nanostructural materials were tested: nanostructural calcium silicate based cement (nCS) (Jokanović et al.), MTA Plus (Cerkamed, Poland), Fuji IX (GC Corporation, Japan) and Ketac Universal Aplicap (3M ESPE, USA). Five samples of each material were mixed in accordance with manifecturer's guidelines and positioned in metal moulds (ϕ4mm and 6mm). Compressive strength (Cs) expressed in MPa was determined after 24 hours, 7 days and 28 days respectively. Measurements were performed on universal testing equipment (Tinius Olsen, USA) at a crosshead speed of 1mm/min. For processing the results one-way ANOVA and post-hoc test were used. Results The highest values of compressive strength after 24h was found in conventional GIC Fuji IX (mean 38.56±13.31) and Ketac Universal (mean 40.77±7.96). Calcium silicate cements after 24h showed low values of compressive strength (MTA Plus 5.91±0.28 MPa, nCS 1.35±0.36 MPa). After 7 days, FUJI IX 47.42±9.33 MPa and Ketac Universal 35.25±10.60 MPa showed higher value of compressive strength than MTA Plus (15.09±2.77 MPa) and nCS (11.06±0.88 MPa). After 28 days the Cs value for conventional GIC Fuji IX was 48.03±7.82 MPa and Ketac Universal 36.65±11.13 MPa while for calcium silicate cements it was 16.47±1.89 MPa and nCS 14.39±1.63 MPa. There was statistically significant difference (p lt 0.05) in Cs between conventional GIC and CS cements after 24h, 7 and 28 days. Conclusions Calcium silicate cements initially showed lower values of compressive strength than conventional GIC that increased over time., Uvod Cilj ovog rada je bio da se proveri kompresivna čvrstoća (KČ) novog nanostrukturnog kalcijum-silikatnog cementa (nCS) i uporedi sa komercijalnim kalcijum-silikatnim cementom i konvencionalnim GJC u funkciji vremena. Materijal i metod Testirana su četiri materijala - nanostrukturni CS (Jokanović i sar.), MTA Plus (Cerkamed, Poland), Fuji IX (GC Corporation, Japan) and Ketac Universal Aplicap (3M ESPE, USA). Po pet uzoraka za svaki materijal je zamešano po proizvođačkom uputstvu i postavljano u metalne kalupe (ϕ 4 mm i 6 mm visoke). KČ, izražena u megapaskalima, merena je posle 24 sata i posle 7 i 28 dana na univerzalnoj test mašini (Tinius Olsen, USA) sa brzinom utiskivača od 1 mm/min. Dobijeni rezultati su statistički obrađeni one-way ANOVA i post hoc Tukey, s testovima. Resultati Posle 24 sata najveću KČ imao je FUJI IX (38,56 ± 13,31 MPa), zatim Ketac Univerzal (40,77 ± 7,96 MPa). Kalcijum-silikatni cementi su pokazali niže vrednosti KČ 24 sata posle mešanja i to MTA 5,91 ± 0,28, a nCS 1,35 ± 0,36 MPa. Posle sedam dana KČ za FUJI IX je bila 47,72 ± 9,33 MPa, a za Ketac Universal 35,25 ± 10,60 MPa, dok je vrednost za MTA bila 15,09 ± 2,77 MPa, a nCS 11,06 ± 0,88. Posle 28 dana KČ za FUJI IX je bila 48,03 ± 7,82 MPa, a za Ketac 36,65 ± 11,13 MPa. KČ kalcijum-silikatnih cemenata posle 28 dana je bila 16,47 ± 1,89 za MTA, a za nCS 14,39 ± 1,63 MPa, bez statističi značajne razlike između njih. Između konvencionalnih GJC i CS cemenata postoji statistički značajna razlika (p  lt  0,05) posle 24 h, kao i posle 7 i 28 dana. Zaključak Kalcijum-silikatni cementi su inicijalno pokazali niže vrednosti KČ u odnosu na konvencionalne GJC, ali su se one povećavale u funkciji vremena.",
publisher = "Srpsko lekarsko društvo - Stomatološka sekcija, Beograd",
journal = "Stomatološki glasnik Srbije",
title = "Compressive strength of calcium silicate-based cement, Ispitivanje kompresivne čvrstoće kalcijum-silikatnih cemenata",
volume = "65",
number = "1",
pages = "7-13",
doi = "10.2478/sdj-2018-0001"
}
Opačić-Galić, V., Stamenić, Z., Petrović, V., Jokanović, V.,& Živković, S.. (2018). Compressive strength of calcium silicate-based cement. in Stomatološki glasnik Srbije
Srpsko lekarsko društvo - Stomatološka sekcija, Beograd., 65(1), 7-13.
https://doi.org/10.2478/sdj-2018-0001
Opačić-Galić V, Stamenić Z, Petrović V, Jokanović V, Živković S. Compressive strength of calcium silicate-based cement. in Stomatološki glasnik Srbije. 2018;65(1):7-13.
doi:10.2478/sdj-2018-0001 .
Opačić-Galić, Vanja, Stamenić, Zoran, Petrović, Violeta, Jokanović, Vukoman, Živković, Slavoljub, "Compressive strength of calcium silicate-based cement" in Stomatološki glasnik Srbije, 65, no. 1 (2018):7-13,
https://doi.org/10.2478/sdj-2018-0001 . .

The role of interleukin-6 in pathogenesis of chronic periapical lesions

Popović, Jelena; Cvetković, Tatjana; Džopalić, Tanja; Nikolić, Marija; Mitić, Aleksandar; Barac, Radomir; Živković, Slavoljub

(Srpsko lekarsko društvo - Stomatološka sekcija, Beograd, 2018)

TY  - JOUR
AU  - Popović, Jelena
AU  - Cvetković, Tatjana
AU  - Džopalić, Tanja
AU  - Nikolić, Marija
AU  - Mitić, Aleksandar
AU  - Barac, Radomir
AU  - Živković, Slavoljub
PY  - 2018
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2366
AB  - Introduction Cytokine network plays an important role in pathogenesis of chronic periapical lesions. The aim of this study was to determine the concentration of interleukin-6 (IL-6) in tissue homogenates of human periapical lesions and correlate its levels with symptomatology and size of the lesions. Materials and Methods 93 samples of chronic periapical lesions were obtained after extraction of teeth. Samples were divided according to the clinical presentation as symptomatic and asymptomatic, and according to the size as large and small. The concentration of IL-6 was analyzed using ELISA. Results Statistically significant difference in IL-6 concentration was observed in symptomatic lesions compared to asymptomatic (p lt 0.001). Analysis showed statistically higher concentration in large symptomatic lesions compared to large asymptomatic lesions (p lt 0.001), and in small symptomatic lesions compared to small asymptomatic (p lt 0.05). Higher production of IL-6 was observed in large lesions compared to small but this difference was not statistically significant. Conclusion Higher concentration of IL-6 in lesions with expressed clinical symptoms as well as in large lesions indicates that IL-6 is an important factor responsible for the progression of lesions and bone resorption.
AB  - Uvod Mreža citokina igra značajnu ulogu u patogenezi hroničnih periapeksnih lezija. Cilj studije je bio da se odredi koncentracija IL-6 u tkivnim homogenatima hroničnih periapeksnih lezija i da se proveri korelacija sa simptomatologijom i veličinom lezija. Materijal i metode Ispitana su 93 uzorka hroničnih periapeksnih lezija dobijenih nakon ekstrakcije zuba. Uzorci lezija su podeljeni prema simptomatologiji pacijenata na simptomatske i asimptomatske, a prema veličini na velike i male. Koncentracija IL-6 je ispitivana pomoću ELISA testa, a dobijene vrednosti su analizirane u odnosu na grupe. Rezultati Statistički značajna razlika u koncentraciji IL-6 je uočena u grupi simptomatskih lezija u poređenju sa asimptomatskim (p  lt  0,001). Analiza je pokazala i statistički značajno veću koncentraciju u velikim simptomatskim lezijama u odnosu na velike asimptomatske (p  lt  0,001) i u malim simptomatskim lezijama u odnosu na male asimptomatske (p  lt  0,05). Zapažena je i povećana produkciju IL-6 u velikim lezijama u odnosu na male, međutim, razlika nije bila statistički značajna. Zaključak Veća koncentracija IL-6 u lezijama sa izraženim kliničkim simptomima kao i velikim lezijama ukazuje na njegovu važnu ulogu u progresiji periapeksnih lezija i koštane resorpcije. .
PB  - Srpsko lekarsko društvo - Stomatološka sekcija, Beograd
T2  - Stomatološki glasnik Srbije
T1  - The role of interleukin-6 in pathogenesis of chronic periapical lesions
T1  - Uloga interleukina-6 u patogenezi hroničnih periapeksnih lezija
VL  - 65
IS  - 3
SP  - 126
EP  - 132
DO  - 10.2478/sdj-2018-0012
ER  - 
@article{
author = "Popović, Jelena and Cvetković, Tatjana and Džopalić, Tanja and Nikolić, Marija and Mitić, Aleksandar and Barac, Radomir and Živković, Slavoljub",
year = "2018",
abstract = "Introduction Cytokine network plays an important role in pathogenesis of chronic periapical lesions. The aim of this study was to determine the concentration of interleukin-6 (IL-6) in tissue homogenates of human periapical lesions and correlate its levels with symptomatology and size of the lesions. Materials and Methods 93 samples of chronic periapical lesions were obtained after extraction of teeth. Samples were divided according to the clinical presentation as symptomatic and asymptomatic, and according to the size as large and small. The concentration of IL-6 was analyzed using ELISA. Results Statistically significant difference in IL-6 concentration was observed in symptomatic lesions compared to asymptomatic (p lt 0.001). Analysis showed statistically higher concentration in large symptomatic lesions compared to large asymptomatic lesions (p lt 0.001), and in small symptomatic lesions compared to small asymptomatic (p lt 0.05). Higher production of IL-6 was observed in large lesions compared to small but this difference was not statistically significant. Conclusion Higher concentration of IL-6 in lesions with expressed clinical symptoms as well as in large lesions indicates that IL-6 is an important factor responsible for the progression of lesions and bone resorption., Uvod Mreža citokina igra značajnu ulogu u patogenezi hroničnih periapeksnih lezija. Cilj studije je bio da se odredi koncentracija IL-6 u tkivnim homogenatima hroničnih periapeksnih lezija i da se proveri korelacija sa simptomatologijom i veličinom lezija. Materijal i metode Ispitana su 93 uzorka hroničnih periapeksnih lezija dobijenih nakon ekstrakcije zuba. Uzorci lezija su podeljeni prema simptomatologiji pacijenata na simptomatske i asimptomatske, a prema veličini na velike i male. Koncentracija IL-6 je ispitivana pomoću ELISA testa, a dobijene vrednosti su analizirane u odnosu na grupe. Rezultati Statistički značajna razlika u koncentraciji IL-6 je uočena u grupi simptomatskih lezija u poređenju sa asimptomatskim (p  lt  0,001). Analiza je pokazala i statistički značajno veću koncentraciju u velikim simptomatskim lezijama u odnosu na velike asimptomatske (p  lt  0,001) i u malim simptomatskim lezijama u odnosu na male asimptomatske (p  lt  0,05). Zapažena je i povećana produkciju IL-6 u velikim lezijama u odnosu na male, međutim, razlika nije bila statistički značajna. Zaključak Veća koncentracija IL-6 u lezijama sa izraženim kliničkim simptomima kao i velikim lezijama ukazuje na njegovu važnu ulogu u progresiji periapeksnih lezija i koštane resorpcije. .",
publisher = "Srpsko lekarsko društvo - Stomatološka sekcija, Beograd",
journal = "Stomatološki glasnik Srbije",
title = "The role of interleukin-6 in pathogenesis of chronic periapical lesions, Uloga interleukina-6 u patogenezi hroničnih periapeksnih lezija",
volume = "65",
number = "3",
pages = "126-132",
doi = "10.2478/sdj-2018-0012"
}
Popović, J., Cvetković, T., Džopalić, T., Nikolić, M., Mitić, A., Barac, R.,& Živković, S.. (2018). The role of interleukin-6 in pathogenesis of chronic periapical lesions. in Stomatološki glasnik Srbije
Srpsko lekarsko društvo - Stomatološka sekcija, Beograd., 65(3), 126-132.
https://doi.org/10.2478/sdj-2018-0012
Popović J, Cvetković T, Džopalić T, Nikolić M, Mitić A, Barac R, Živković S. The role of interleukin-6 in pathogenesis of chronic periapical lesions. in Stomatološki glasnik Srbije. 2018;65(3):126-132.
doi:10.2478/sdj-2018-0012 .
Popović, Jelena, Cvetković, Tatjana, Džopalić, Tanja, Nikolić, Marija, Mitić, Aleksandar, Barac, Radomir, Živković, Slavoljub, "The role of interleukin-6 in pathogenesis of chronic periapical lesions" in Stomatološki glasnik Srbije, 65, no. 3 (2018):126-132,
https://doi.org/10.2478/sdj-2018-0012 . .
3

Influence of different forms of calcium hydroxide and chlorhexidine intracanal medicaments on the outcome of endodontic treatment of teeth with chronic apical periodontitis

Stojanović, Nikola; Krunić, Jelena; Mladenović, Irena; Stojanović, Zorica; Apostolska, Sonja; Živković, Slavoljub

(Srpsko lekarsko društvo, Beograd, 2018)

TY  - JOUR
AU  - Stojanović, Nikola
AU  - Krunić, Jelena
AU  - Mladenović, Irena
AU  - Stojanović, Zorica
AU  - Apostolska, Sonja
AU  - Živković, Slavoljub
PY  - 2018
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2354
AB  - Introduction/Objective The aim of this study was to determine clinical and radiographic periapical healing of teeth with apical periodontitis treated with different formulations of calcium hydroxide (CH) - paste (CH-paste) and gutta-percha points (CH-GP) - as well as those of chlorhexidine (CHX) - gel (CHXgel) and gutta-percha points (CHX-GP) -12 months after therapy. Methods Eighty patients with chronic apical periodontitis were randomly allocated to four treatment groups according to the intracanal medicament used: CH-paste, CH-GP, CHX-gel, and CHX-GP group. Seventy-eight patients were analyzed clinically and radiographically 12 months postoperatively. The periapical index (PAI) was used for the radiographic evaluation of treatment. Results Overall outcome was classified according to radiographic evaluation only, since clinical success was observed in all the patients. In all the groups, significant reduction in PAI scores was observed (p  lt  0.001). The proportions of healed teeth (PAI ≤ 2) were 73.7%, 60%, 68.4%, and 65% in CH-paste, CH-GP, CHX-gel and CHX-GP group, respectively, with no significant differences between the groups. Conclusion The results suggest that there are no differences between investigated CH- and CHX-delivery systems regarding treatment outcome of teeth with apical periodontitis.
AB  - Uvod/Cilj Cilj ovog istraživanja je bio da se ispita klinički i radiografski ishod lečenja zuba sa apeksnim periodontitisom 12 meseci posle završene terapije i primene različitih oblika kalcijum-hidroksida (KH): pasta (KH-pasta) i gutaperka poeni (KH-GP) i hlorheksidina (HH): gel (HH-gel) i gutaperka poeni (HH-GP). Metode Randomizovano je 80 ispitanika sa hroničnim periapeksnim lezijama u četiri grupe na osnovu vrste korišćenog interseansnog medikamenta: KH-pasta, KH-GP, HH-gel i HH-GP. Dvanaest meseci posle završenog lečenja pregledano je 78 ispitanika i urađeni su retroalveolarni snimci. Za procenu radiografskog uspeha lečenja korišćen je periapikalni indeks (PI). Rezultati Ishod lečenja je klasifikovan na osnovu radiološkog nalaza jer je kod svih ispitanika zabeležen klinički uspeh lečenja. U svim ispitivanim grupama je zabeleženo značajno smanjenje vrednosti PI (p  lt  0,001). Izlečenje (PI ≤ 2) uočeno je kod 73,3% zuba u grupi KH-pasta, 60% u KH-GP grupi, 68,4% u grupi HH-gel i kod 65% zuba u grupi HH-GP, pri čemu razlike između grupa nisu bile statistički značajne. Zaključak Rezultati ovog istraživanja pokazuju da ne postoji razlika u ishodu lečenja zuba sa apeksnim periodontitisom posle primene ispitivanih oblika KH i HH.
PB  - Srpsko lekarsko društvo, Beograd
T2  - Srpski arhiv za celokupno lekarstvo
T1  - Influence of different forms of calcium hydroxide and chlorhexidine intracanal medicaments on the outcome of endodontic treatment of teeth with chronic apical periodontitis
T1  - Uticaj različitih oblika kalcijum-hidroksida i hlorheksidina kao interseansnih medikamenata na ishod endodontskog lečenja zuba sa hroničnim periapeksnim lezijama
VL  - 146
IS  - 3-4
SP  - 143
EP  - 148
DO  - 10.2298/SARH170221139S
ER  - 
@article{
author = "Stojanović, Nikola and Krunić, Jelena and Mladenović, Irena and Stojanović, Zorica and Apostolska, Sonja and Živković, Slavoljub",
year = "2018",
abstract = "Introduction/Objective The aim of this study was to determine clinical and radiographic periapical healing of teeth with apical periodontitis treated with different formulations of calcium hydroxide (CH) - paste (CH-paste) and gutta-percha points (CH-GP) - as well as those of chlorhexidine (CHX) - gel (CHXgel) and gutta-percha points (CHX-GP) -12 months after therapy. Methods Eighty patients with chronic apical periodontitis were randomly allocated to four treatment groups according to the intracanal medicament used: CH-paste, CH-GP, CHX-gel, and CHX-GP group. Seventy-eight patients were analyzed clinically and radiographically 12 months postoperatively. The periapical index (PAI) was used for the radiographic evaluation of treatment. Results Overall outcome was classified according to radiographic evaluation only, since clinical success was observed in all the patients. In all the groups, significant reduction in PAI scores was observed (p  lt  0.001). The proportions of healed teeth (PAI ≤ 2) were 73.7%, 60%, 68.4%, and 65% in CH-paste, CH-GP, CHX-gel and CHX-GP group, respectively, with no significant differences between the groups. Conclusion The results suggest that there are no differences between investigated CH- and CHX-delivery systems regarding treatment outcome of teeth with apical periodontitis., Uvod/Cilj Cilj ovog istraživanja je bio da se ispita klinički i radiografski ishod lečenja zuba sa apeksnim periodontitisom 12 meseci posle završene terapije i primene različitih oblika kalcijum-hidroksida (KH): pasta (KH-pasta) i gutaperka poeni (KH-GP) i hlorheksidina (HH): gel (HH-gel) i gutaperka poeni (HH-GP). Metode Randomizovano je 80 ispitanika sa hroničnim periapeksnim lezijama u četiri grupe na osnovu vrste korišćenog interseansnog medikamenta: KH-pasta, KH-GP, HH-gel i HH-GP. Dvanaest meseci posle završenog lečenja pregledano je 78 ispitanika i urađeni su retroalveolarni snimci. Za procenu radiografskog uspeha lečenja korišćen je periapikalni indeks (PI). Rezultati Ishod lečenja je klasifikovan na osnovu radiološkog nalaza jer je kod svih ispitanika zabeležen klinički uspeh lečenja. U svim ispitivanim grupama je zabeleženo značajno smanjenje vrednosti PI (p  lt  0,001). Izlečenje (PI ≤ 2) uočeno je kod 73,3% zuba u grupi KH-pasta, 60% u KH-GP grupi, 68,4% u grupi HH-gel i kod 65% zuba u grupi HH-GP, pri čemu razlike između grupa nisu bile statistički značajne. Zaključak Rezultati ovog istraživanja pokazuju da ne postoji razlika u ishodu lečenja zuba sa apeksnim periodontitisom posle primene ispitivanih oblika KH i HH.",
publisher = "Srpsko lekarsko društvo, Beograd",
journal = "Srpski arhiv za celokupno lekarstvo",
title = "Influence of different forms of calcium hydroxide and chlorhexidine intracanal medicaments on the outcome of endodontic treatment of teeth with chronic apical periodontitis, Uticaj različitih oblika kalcijum-hidroksida i hlorheksidina kao interseansnih medikamenata na ishod endodontskog lečenja zuba sa hroničnim periapeksnim lezijama",
volume = "146",
number = "3-4",
pages = "143-148",
doi = "10.2298/SARH170221139S"
}
Stojanović, N., Krunić, J., Mladenović, I., Stojanović, Z., Apostolska, S.,& Živković, S.. (2018). Influence of different forms of calcium hydroxide and chlorhexidine intracanal medicaments on the outcome of endodontic treatment of teeth with chronic apical periodontitis. in Srpski arhiv za celokupno lekarstvo
Srpsko lekarsko društvo, Beograd., 146(3-4), 143-148.
https://doi.org/10.2298/SARH170221139S
Stojanović N, Krunić J, Mladenović I, Stojanović Z, Apostolska S, Živković S. Influence of different forms of calcium hydroxide and chlorhexidine intracanal medicaments on the outcome of endodontic treatment of teeth with chronic apical periodontitis. in Srpski arhiv za celokupno lekarstvo. 2018;146(3-4):143-148.
doi:10.2298/SARH170221139S .
Stojanović, Nikola, Krunić, Jelena, Mladenović, Irena, Stojanović, Zorica, Apostolska, Sonja, Živković, Slavoljub, "Influence of different forms of calcium hydroxide and chlorhexidine intracanal medicaments on the outcome of endodontic treatment of teeth with chronic apical periodontitis" in Srpski arhiv za celokupno lekarstvo, 146, no. 3-4 (2018):143-148,
https://doi.org/10.2298/SARH170221139S . .
2
1
2

Biocompatibility of nanostructured biomaterials based on calcium aluminate

Janković, Ognjenka; Paraš, Smiljana; Tadić-Latinović, Ljiljana; Josipović, Renata; Jokanović, Vukoman; Živković, Slavoljub

(Srpsko lekarsko društvo, Beograd, 2018)

TY  - JOUR
AU  - Janković, Ognjenka
AU  - Paraš, Smiljana
AU  - Tadić-Latinović, Ljiljana
AU  - Josipović, Renata
AU  - Jokanović, Vukoman
AU  - Živković, Slavoljub
PY  - 2018
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2352
AB  - Introduction/Objective The aim of this paper was to verify the biocompatibility of the newly synthesized nanostructured material based on calcium aluminate after implantation into the subcutaneous tissue of rats. Methods The study included 18 rats aged 10-11 weeks, divided into two experimental groups (n = 9). In all animals, incision took place on the back and two pockets of 15 mm in depth were made, in which sterile polyethylene tubes with test materials [calcium aluminate cement (ALBO-CA), calcium silicate cement with the addition of hydroxyapatite (ALBO-CSHA), and mineral trioxide aggregate (MTA) for the control group) were implanted. Six rats of each group were sacrificed in three observational periods (seven, 15, 30 days). Pathohistological analysis included inflammation, bleeding, fibrous capsule, and tissue integrity around the implanted material. Results After seven days of treatment, ALBO-CA and ALBO-CSHA showed better tissue response compared to MTA, with a statistically significant difference in inflammation intensity (p = 0.2781). The difference in vascular congestion and thickness of the fibrous capsule after implantation of ALBO-CA material compared to MTA was also statistically significant (p = 0.5567). At the end of the 30-day evaluation period, an identical inflammatory response of connective tissue at the site of implanting ALBO-CA, ALBO-CSHA, and MTA (score of 0.7) was recorded. The formation of thick or moderately thick fibrous capsule was found to be the thickest in ALBO-CA (grade 3.7). There were no statistically significant differences between the parameters analyzed after 30 days. Conclusion Newly synthesized ALBO-CA showed a satisfactory tissue response and confirmed biocompatibility after implantation in subcutaneous tissue of rats.
AB  - Uvod/Cilj Cilj ovog rada je bio da se proveri biokompatibilnost novosintetisanog nanostrukturnog materijala na bazi kalcijum-aluminata posle implantacije u potkožno tkivo pacova. Metode U istraživanje je uključeno 18 pacova starosti 10-11 sedmica, koji su podeljeni u dve eksperimentalne grupe (n = 9). Kod svih životinja je urađena incizija na leđima i formirana su dva džepa dubine 15 mm u koja su aplicirane sterilne polietilenske tubice sa testnim materijalima (ALBO-CA, ALBO-CSHA i kontrola MTA). Po šest pacova svake grupe je žrtvovano u tri opservaciona perioda (7, 15 i 30 dana). Patohistološki su analizirani inflamacija, krvarenje, fibrozna kapsula i integritet tkiva oko implantiranog materijala. Rezultati Posle sedam dana ALBO-CA i ALBO-CSHA su pokazali bolji tkivni odgovor u odnosu na MTA sa statistički značajnom razlikom u intenzitetu inflamacije (p = 0,2781). Razlika u vaskularnoj kongestiji i debljini fibrozne kapsule posle implantacije materijala ALBO-CA u odnosu na MTA je takođe bila statistički značajna (p = 0,5567). Na kraju evaluacionog perioda od 30 dana zabeležen je identičan inflamatorni odgovor rastresitog vezivnog tkiva na mestu implantacije ALBO-CA, ALBO-CSHA i MTA (ocena 0,7). Konstatovano je formiranje debele ili umereno debele fibrozne kapsule, koja je bila najdeblja kod ALBO-CA (ocena 3,7). Statistički značajne razlike između analiziranih parametara posle 30 dana nije bilo. Zaključak Novosintetisani ALBO-CA je pokazao zadovoljavajuću tkivnu reakciju i potvrdio biokompatibilnost posle implantacije u potkožno tkivo pacova.
PB  - Srpsko lekarsko društvo, Beograd
T2  - Srpski arhiv za celokupno lekarstvo
T1  - Biocompatibility of nanostructured biomaterials based on calcium aluminate
T1  - Biokompatibilnost nanostrukturnih biomaterijala na bazi kalcijum-aluminata
VL  - 146
IS  - 11-12
SP  - 634
EP  - 640
DO  - 10.2298/SARH171211030J
ER  - 
@article{
author = "Janković, Ognjenka and Paraš, Smiljana and Tadić-Latinović, Ljiljana and Josipović, Renata and Jokanović, Vukoman and Živković, Slavoljub",
year = "2018",
abstract = "Introduction/Objective The aim of this paper was to verify the biocompatibility of the newly synthesized nanostructured material based on calcium aluminate after implantation into the subcutaneous tissue of rats. Methods The study included 18 rats aged 10-11 weeks, divided into two experimental groups (n = 9). In all animals, incision took place on the back and two pockets of 15 mm in depth were made, in which sterile polyethylene tubes with test materials [calcium aluminate cement (ALBO-CA), calcium silicate cement with the addition of hydroxyapatite (ALBO-CSHA), and mineral trioxide aggregate (MTA) for the control group) were implanted. Six rats of each group were sacrificed in three observational periods (seven, 15, 30 days). Pathohistological analysis included inflammation, bleeding, fibrous capsule, and tissue integrity around the implanted material. Results After seven days of treatment, ALBO-CA and ALBO-CSHA showed better tissue response compared to MTA, with a statistically significant difference in inflammation intensity (p = 0.2781). The difference in vascular congestion and thickness of the fibrous capsule after implantation of ALBO-CA material compared to MTA was also statistically significant (p = 0.5567). At the end of the 30-day evaluation period, an identical inflammatory response of connective tissue at the site of implanting ALBO-CA, ALBO-CSHA, and MTA (score of 0.7) was recorded. The formation of thick or moderately thick fibrous capsule was found to be the thickest in ALBO-CA (grade 3.7). There were no statistically significant differences between the parameters analyzed after 30 days. Conclusion Newly synthesized ALBO-CA showed a satisfactory tissue response and confirmed biocompatibility after implantation in subcutaneous tissue of rats., Uvod/Cilj Cilj ovog rada je bio da se proveri biokompatibilnost novosintetisanog nanostrukturnog materijala na bazi kalcijum-aluminata posle implantacije u potkožno tkivo pacova. Metode U istraživanje je uključeno 18 pacova starosti 10-11 sedmica, koji su podeljeni u dve eksperimentalne grupe (n = 9). Kod svih životinja je urađena incizija na leđima i formirana su dva džepa dubine 15 mm u koja su aplicirane sterilne polietilenske tubice sa testnim materijalima (ALBO-CA, ALBO-CSHA i kontrola MTA). Po šest pacova svake grupe je žrtvovano u tri opservaciona perioda (7, 15 i 30 dana). Patohistološki su analizirani inflamacija, krvarenje, fibrozna kapsula i integritet tkiva oko implantiranog materijala. Rezultati Posle sedam dana ALBO-CA i ALBO-CSHA su pokazali bolji tkivni odgovor u odnosu na MTA sa statistički značajnom razlikom u intenzitetu inflamacije (p = 0,2781). Razlika u vaskularnoj kongestiji i debljini fibrozne kapsule posle implantacije materijala ALBO-CA u odnosu na MTA je takođe bila statistički značajna (p = 0,5567). Na kraju evaluacionog perioda od 30 dana zabeležen je identičan inflamatorni odgovor rastresitog vezivnog tkiva na mestu implantacije ALBO-CA, ALBO-CSHA i MTA (ocena 0,7). Konstatovano je formiranje debele ili umereno debele fibrozne kapsule, koja je bila najdeblja kod ALBO-CA (ocena 3,7). Statistički značajne razlike između analiziranih parametara posle 30 dana nije bilo. Zaključak Novosintetisani ALBO-CA je pokazao zadovoljavajuću tkivnu reakciju i potvrdio biokompatibilnost posle implantacije u potkožno tkivo pacova.",
publisher = "Srpsko lekarsko društvo, Beograd",
journal = "Srpski arhiv za celokupno lekarstvo",
title = "Biocompatibility of nanostructured biomaterials based on calcium aluminate, Biokompatibilnost nanostrukturnih biomaterijala na bazi kalcijum-aluminata",
volume = "146",
number = "11-12",
pages = "634-640",
doi = "10.2298/SARH171211030J"
}
Janković, O., Paraš, S., Tadić-Latinović, L., Josipović, R., Jokanović, V.,& Živković, S.. (2018). Biocompatibility of nanostructured biomaterials based on calcium aluminate. in Srpski arhiv za celokupno lekarstvo
Srpsko lekarsko društvo, Beograd., 146(11-12), 634-640.
https://doi.org/10.2298/SARH171211030J
Janković O, Paraš S, Tadić-Latinović L, Josipović R, Jokanović V, Živković S. Biocompatibility of nanostructured biomaterials based on calcium aluminate. in Srpski arhiv za celokupno lekarstvo. 2018;146(11-12):634-640.
doi:10.2298/SARH171211030J .
Janković, Ognjenka, Paraš, Smiljana, Tadić-Latinović, Ljiljana, Josipović, Renata, Jokanović, Vukoman, Živković, Slavoljub, "Biocompatibility of nanostructured biomaterials based on calcium aluminate" in Srpski arhiv za celokupno lekarstvo, 146, no. 11-12 (2018):634-640,
https://doi.org/10.2298/SARH171211030J . .
2
1
1

Subchronic Systemic Toxicity of New Endodontic Material Based on Calcium Hydroxyapatite and Calcium Silicates

Jokanović, Vukoman; Čolović, Božana; Prokić, Bogomir Bolka; Tomanović, Nada; Popović-Bajić, Marijana; Živković, Slavoljub

(Hindawi Ltd, London, 2018)

TY  - JOUR
AU  - Jokanović, Vukoman
AU  - Čolović, Božana
AU  - Prokić, Bogomir Bolka
AU  - Tomanović, Nada
AU  - Popović-Bajić, Marijana
AU  - Živković, Slavoljub
PY  - 2018
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2313
AB  - As an alternative to MTA, a new endodontic material based on hydroxyapatite and calcium silicates (ALBO-MPSA) has been synthesized, and its biocompatibility has been studied in many in vitro and in vivo studies. The current study aims to evaluate a subchronic systemic toxicity of ALBO-MPSA on the rat animal model, as a continuation of the previous studies. Biochemical parameters of blood and histological parameters of the liver, kidneys, and spleen of the rats were analyzed after 120 days of consumption of the aqueous extract of ALBO-MPSA. The results showed no myelotoxic effect or autoimmune effect on peripheral blood cells and no pathological effect on the liver, kidney, and spleen tissues. Besides, no changes in the skin and hair of the rats, neither the change in the consumption of food and water, nor the change in their usual behavior were noticed during the experiment.
PB  - Hindawi Ltd, London
T2  - Advances in Materials Science & Engineering
T1  - Subchronic Systemic Toxicity of New Endodontic Material Based on Calcium Hydroxyapatite and Calcium Silicates
VL  - 2018
DO  - 10.1155/2018/8493439
ER  - 
@article{
author = "Jokanović, Vukoman and Čolović, Božana and Prokić, Bogomir Bolka and Tomanović, Nada and Popović-Bajić, Marijana and Živković, Slavoljub",
year = "2018",
abstract = "As an alternative to MTA, a new endodontic material based on hydroxyapatite and calcium silicates (ALBO-MPSA) has been synthesized, and its biocompatibility has been studied in many in vitro and in vivo studies. The current study aims to evaluate a subchronic systemic toxicity of ALBO-MPSA on the rat animal model, as a continuation of the previous studies. Biochemical parameters of blood and histological parameters of the liver, kidneys, and spleen of the rats were analyzed after 120 days of consumption of the aqueous extract of ALBO-MPSA. The results showed no myelotoxic effect or autoimmune effect on peripheral blood cells and no pathological effect on the liver, kidney, and spleen tissues. Besides, no changes in the skin and hair of the rats, neither the change in the consumption of food and water, nor the change in their usual behavior were noticed during the experiment.",
publisher = "Hindawi Ltd, London",
journal = "Advances in Materials Science & Engineering",
title = "Subchronic Systemic Toxicity of New Endodontic Material Based on Calcium Hydroxyapatite and Calcium Silicates",
volume = "2018",
doi = "10.1155/2018/8493439"
}
Jokanović, V., Čolović, B., Prokić, B. B., Tomanović, N., Popović-Bajić, M.,& Živković, S.. (2018). Subchronic Systemic Toxicity of New Endodontic Material Based on Calcium Hydroxyapatite and Calcium Silicates. in Advances in Materials Science & Engineering
Hindawi Ltd, London., 2018.
https://doi.org/10.1155/2018/8493439
Jokanović V, Čolović B, Prokić BB, Tomanović N, Popović-Bajić M, Živković S. Subchronic Systemic Toxicity of New Endodontic Material Based on Calcium Hydroxyapatite and Calcium Silicates. in Advances in Materials Science & Engineering. 2018;2018.
doi:10.1155/2018/8493439 .
Jokanović, Vukoman, Čolović, Božana, Prokić, Bogomir Bolka, Tomanović, Nada, Popović-Bajić, Marijana, Živković, Slavoljub, "Subchronic Systemic Toxicity of New Endodontic Material Based on Calcium Hydroxyapatite and Calcium Silicates" in Advances in Materials Science & Engineering, 2018 (2018),
https://doi.org/10.1155/2018/8493439 . .
3
2
2

Clinical and radiological analysis of the causes for endodontic treatment failure

Nešković, Jelena; Jovanović-Medojević, Milica; Živković, Slavoljub

(Srpsko lekarsko društvo - Stomatološka sekcija, Beograd, 2017)

TY  - JOUR
AU  - Nešković, Jelena
AU  - Jovanović-Medojević, Milica
AU  - Živković, Slavoljub
PY  - 2017
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2256
AB  - Introduction Development of inflammatory lesions or their persistence after primary treatment is considered endodontic failure. The reason for failure can be complex anatomy of the canal system and numerous iatrogenic factors. The objective of this study was to analyze, clinically and radiographically, the causes of primary endodontic treatment failure and assess possibilities for retreatment of teeth with failed endodontic treatment. Method The study included 79 teeth (36 multirooted and 43 singlerooted tooth) indicated for repeated endodontic treatment. Based on the radiographic assessment of the status of periapical structures, teeth were divided into two groups. The first group included teeth without periapical lesions, i.e. the healthy periodontal tissues (PAI score of 1 and 2) in which retreatment was required for prosthodontic reason due to the poor quality of obturation (28 teeth), and the second group included teeth with visible signs of periapical tissue damage (PAI scores 3, 4 and 5) (51 teeth). In both groups, quality of obturation, coronal sealing and the presence or absence of clinical symptoms was analyzed. Results The most common radiographic finding of definitive obturation was short filling (65.8% of cases); “forgotten” canals (25.3%); non-homogeneous obturation with correct length (5.1%) and fractured instrument (3.8%). There was significant difference between healthy periodontal ligament and adequate restoration (P  lt  0.001). In 95% of patients with symptoms, changes in the periapical tissue were observed. Also, there was significant difference in the presence of symptoms after primary treatments, between the teeth with healthy apical periodontal tissue and teeth with periapical lesions (P = 0.019). Conclusion The outcome of the root canal treatment is significantly affected by the quality (density) of obturation and the presence and quality of coronal restoration. In patients with symptoms there were changes in the periapical tissue.
AB  - Uvod Neuspehom endodontskog lečenja smatra se pojava radiografskog nalaza inflamatorne lezije, odnosno njeno perzistiranje ili uvećanje posle preduzete primarne endodontske terapije. Razlog za neuspeh mogu biti kompleksna anatomija kanalnog sistema, ali i brojni jatrogeni faktori. Cilj ovog rada je bio da se kod zuba sa neuspelim endodontskim lečenjem klinički i radiografski analizira uzrok neuspeha primarnog endodontskog tretmana i procene mogućnosti za ponovni endodontski zahvat. Metod rada U ovo istraživanje je uključeno 79 zuba (36 višekorenih i 43 jednokorena zuba) indikovanih za ponovljeni endodontski tretman. Na osnovu radiografske ocene stanja periapikalnih struktura zubi su podeljeni u dve grupe: prvu grupu su činili zubi bez periapikalnih promena, tj. sa zdravim parodoncijumom (PAI skor 1 i 2) kod kojih je retretman bio neophodan iz protetskih razloga – zbog lošeg kvaliteta definitivne opturacije (28 zuba), a drugu zubi sa vidljivim znacima oštećenja apeksnog parodoncijuma (PAI skor 3, 4 i 5) (51 zub). U obe grupe analiziran je kvalitet opturacije, kvalitet kruničnog zaptivanja i prisustvo ili odsustvo kliničkih simptoma. Rezultati Najčešći radiografski nalazi kvaliteta definitivne opturacije kanala bili su: kratko punjenje (65,8% slučajeva), “zaboravljeni” kanali (25,3%), klinički nehomogeno punjenje uz korektnu dužinu definitivnog punjenja (5,1%) i frakturiran instrument (3,8%). Nađe- na je statistički visoko značajna razlika između adekvatne restauracije i zdravog parodoncijuma, odnosno pojave mikrocurenja zbog neadekvatne restauracije i periapikalnih promena (p  lt  0,001). Kod 95% pacijenata sa simptomima uočene su promene u apeksnom parodoncijumu. Takođe, nađena je statistički značajna razlika u prisustvu simptoma nakon primarne endodontske terapije između zuba sa zdravim parodoncijumom i zuba sa periapikalnim lezijama (p = 0,019) Zaključak Na ishod endodontskog lečenja značajno utiču kvalitet (hermetičnost) opturacije kanala korena, odnosno prisusutvo i kvalitet koronarne restauracije. Kod pacijenata sa simptomima uglavnom su postojale i promene u apeksnom parodoncijumu nakon endodontskog lečenja.
PB  - Srpsko lekarsko društvo - Stomatološka sekcija, Beograd
T2  - Stomatološki glasnik Srbije
T1  - Clinical and radiological analysis of the causes for endodontic treatment failure
T1  - Uzroci neuspeha endodontskog lečenja zuba
VL  - 64
IS  - 2
SP  - 63
EP  - 73
DO  - 10.1515/sdj-2017-0006
ER  - 
@article{
author = "Nešković, Jelena and Jovanović-Medojević, Milica and Živković, Slavoljub",
year = "2017",
abstract = "Introduction Development of inflammatory lesions or their persistence after primary treatment is considered endodontic failure. The reason for failure can be complex anatomy of the canal system and numerous iatrogenic factors. The objective of this study was to analyze, clinically and radiographically, the causes of primary endodontic treatment failure and assess possibilities for retreatment of teeth with failed endodontic treatment. Method The study included 79 teeth (36 multirooted and 43 singlerooted tooth) indicated for repeated endodontic treatment. Based on the radiographic assessment of the status of periapical structures, teeth were divided into two groups. The first group included teeth without periapical lesions, i.e. the healthy periodontal tissues (PAI score of 1 and 2) in which retreatment was required for prosthodontic reason due to the poor quality of obturation (28 teeth), and the second group included teeth with visible signs of periapical tissue damage (PAI scores 3, 4 and 5) (51 teeth). In both groups, quality of obturation, coronal sealing and the presence or absence of clinical symptoms was analyzed. Results The most common radiographic finding of definitive obturation was short filling (65.8% of cases); “forgotten” canals (25.3%); non-homogeneous obturation with correct length (5.1%) and fractured instrument (3.8%). There was significant difference between healthy periodontal ligament and adequate restoration (P  lt  0.001). In 95% of patients with symptoms, changes in the periapical tissue were observed. Also, there was significant difference in the presence of symptoms after primary treatments, between the teeth with healthy apical periodontal tissue and teeth with periapical lesions (P = 0.019). Conclusion The outcome of the root canal treatment is significantly affected by the quality (density) of obturation and the presence and quality of coronal restoration. In patients with symptoms there were changes in the periapical tissue., Uvod Neuspehom endodontskog lečenja smatra se pojava radiografskog nalaza inflamatorne lezije, odnosno njeno perzistiranje ili uvećanje posle preduzete primarne endodontske terapije. Razlog za neuspeh mogu biti kompleksna anatomija kanalnog sistema, ali i brojni jatrogeni faktori. Cilj ovog rada je bio da se kod zuba sa neuspelim endodontskim lečenjem klinički i radiografski analizira uzrok neuspeha primarnog endodontskog tretmana i procene mogućnosti za ponovni endodontski zahvat. Metod rada U ovo istraživanje je uključeno 79 zuba (36 višekorenih i 43 jednokorena zuba) indikovanih za ponovljeni endodontski tretman. Na osnovu radiografske ocene stanja periapikalnih struktura zubi su podeljeni u dve grupe: prvu grupu su činili zubi bez periapikalnih promena, tj. sa zdravim parodoncijumom (PAI skor 1 i 2) kod kojih je retretman bio neophodan iz protetskih razloga – zbog lošeg kvaliteta definitivne opturacije (28 zuba), a drugu zubi sa vidljivim znacima oštećenja apeksnog parodoncijuma (PAI skor 3, 4 i 5) (51 zub). U obe grupe analiziran je kvalitet opturacije, kvalitet kruničnog zaptivanja i prisustvo ili odsustvo kliničkih simptoma. Rezultati Najčešći radiografski nalazi kvaliteta definitivne opturacije kanala bili su: kratko punjenje (65,8% slučajeva), “zaboravljeni” kanali (25,3%), klinički nehomogeno punjenje uz korektnu dužinu definitivnog punjenja (5,1%) i frakturiran instrument (3,8%). Nađe- na je statistički visoko značajna razlika između adekvatne restauracije i zdravog parodoncijuma, odnosno pojave mikrocurenja zbog neadekvatne restauracije i periapikalnih promena (p  lt  0,001). Kod 95% pacijenata sa simptomima uočene su promene u apeksnom parodoncijumu. Takođe, nađena je statistički značajna razlika u prisustvu simptoma nakon primarne endodontske terapije između zuba sa zdravim parodoncijumom i zuba sa periapikalnim lezijama (p = 0,019) Zaključak Na ishod endodontskog lečenja značajno utiču kvalitet (hermetičnost) opturacije kanala korena, odnosno prisusutvo i kvalitet koronarne restauracije. Kod pacijenata sa simptomima uglavnom su postojale i promene u apeksnom parodoncijumu nakon endodontskog lečenja.",
publisher = "Srpsko lekarsko društvo - Stomatološka sekcija, Beograd",
journal = "Stomatološki glasnik Srbije",
title = "Clinical and radiological analysis of the causes for endodontic treatment failure, Uzroci neuspeha endodontskog lečenja zuba",
volume = "64",
number = "2",
pages = "63-73",
doi = "10.1515/sdj-2017-0006"
}
Nešković, J., Jovanović-Medojević, M.,& Živković, S.. (2017). Clinical and radiological analysis of the causes for endodontic treatment failure. in Stomatološki glasnik Srbije
Srpsko lekarsko društvo - Stomatološka sekcija, Beograd., 64(2), 63-73.
https://doi.org/10.1515/sdj-2017-0006
Nešković J, Jovanović-Medojević M, Živković S. Clinical and radiological analysis of the causes for endodontic treatment failure. in Stomatološki glasnik Srbije. 2017;64(2):63-73.
doi:10.1515/sdj-2017-0006 .
Nešković, Jelena, Jovanović-Medojević, Milica, Živković, Slavoljub, "Clinical and radiological analysis of the causes for endodontic treatment failure" in Stomatološki glasnik Srbije, 64, no. 2 (2017):63-73,
https://doi.org/10.1515/sdj-2017-0006 . .

The efficacy of XP-endo shaper (XPS) in cleaning the apical third of the root canal

Živković, Slavoljub; Nešković, Jelena; Jovanović-Medojević, Milica; Popović-Bajić, Marijana; Živković-Sandić, Marija

(Srpsko lekarsko društvo - Stomatološka sekcija, Beograd, 2017)

TY  - JOUR
AU  - Živković, Slavoljub
AU  - Nešković, Jelena
AU  - Jovanović-Medojević, Milica
AU  - Popović-Bajić, Marijana
AU  - Živković-Sandić, Marija
PY  - 2017
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2236
AB  - Introduction The aim of this study was to evaluate the efficacy of new rotary NiTi instrument XP endo SHAPER (XPS) used with conventional irrigation protocol on the root canal cleaning in the apical area. Material and methods The research was conducted in vitro on 40 extracted single-rooted teeth divided into the four groups. Instrumentation in the first group was performed using iRa Ce NiTi rotary instruments, in the second group the same instruments were used plus XP endo FINISHER (XPF) for smear layer removal. In the third group, canal instrumentation was done using new instrument XPS, and in the fourth XPS instruments plus XPF was used. During the instrumentation 2% NaOCl solution was used for rinsing canals. The SEM analysis of the cleaning quality in the apical third of the canal was performed on longitudinal root cross-sections and standardized microphotography with a 2000x magnification. Results The thickest smear layer in the apical third was recorded in the first group (iRa Ce) NiTi instruments (2.12), and somewhat less in the group with the new XPS instrument (1.95). An identical and somewhat smaller amount of smear layer was registered in the second and fourth groups where XPF was used with the final irrigant (1.64) (p lt 0.001). Conclusion The application of only one instrument (XPS) in the canal enabled efficient cleaning of a very complex apical third. Cleaning was more efficient when XPF was used with final irrigant after the canal instrumentation.
AB  - Uvod Cilj ovog rada je bio da se SEM analizom proceni efikasnost čišćenja apeksne trećine kanala korena primenom novog rotirajućeg NiTi instrumenta XPS uz protokol konvencionalne irigacije. Materijal i metode rada Istraživanje je realizovano u in vitro uslovima na 40 ekstrahovanih jednokorenih zuba podeljenih u četiri grupe. Instrumentacija kanala u prvoj grupi je izvedena setom iRa Ce NiTi rotirajućih instrumenata, a u drugoj je nakon instrumentacije ovim setom za uklanjanje razmaznog sloja korišćen XPF. U trećoj grupi je instrumentacija kanala realizovana novim instrumentom XPS, a u četvrtoj je posle završene instrumentacije takođe korišćen XPS. Irigacija kanala korena u svim grupama je sprovedena 2% rastvorom NaOCl primenom konvencionalnog protokola. SEM analiza kvaliteta čišćenja apeksne trećine kanala je realizovana na uzdužnim presecima korenova i standardizovanim mikrofotografijama na uveličanju od 2000 puta. Rezultati Dobijeni rezultati su pokazali da je najviše razmaznog sloja u apeksnoj trećini zabeleženo u grupi gde je instrumentacija realizovana setom iRa Ce NiTi instrumenata (2,12), a nešto manje u grupi sa novim instrumentom XPS (1,95). Identična i nešto manja količina razmaznog sloja je registrovana u drugoj i četvrtoj grupi, gde je posle završene instrumentacije korišćen XPF (1,64) (p  lt  0,001). Zaključak Primena samo jednog instrumenta (XPS) u instrumentaciji kanala obezbeđuje efikasno čišćenje vrlo kompleksne apeksne trećine. Ovo čišćenje je značajno efikasnije posle primene XPF nakon završene instrumentacije kanala.
PB  - Srpsko lekarsko društvo - Stomatološka sekcija, Beograd
T2  - Stomatološki glasnik Srbije
T1  - The efficacy of XP-endo shaper (XPS) in cleaning the apical third of the root canal
T1  - XP-endo shaper (XPS) - efikasnost u čišćenju apeksne trećine kanala
VL  - 64
IS  - 4
SP  - 171
EP  - 178
DO  - 10.1515/sdj-2017-0016
ER  - 
@article{
author = "Živković, Slavoljub and Nešković, Jelena and Jovanović-Medojević, Milica and Popović-Bajić, Marijana and Živković-Sandić, Marija",
year = "2017",
abstract = "Introduction The aim of this study was to evaluate the efficacy of new rotary NiTi instrument XP endo SHAPER (XPS) used with conventional irrigation protocol on the root canal cleaning in the apical area. Material and methods The research was conducted in vitro on 40 extracted single-rooted teeth divided into the four groups. Instrumentation in the first group was performed using iRa Ce NiTi rotary instruments, in the second group the same instruments were used plus XP endo FINISHER (XPF) for smear layer removal. In the third group, canal instrumentation was done using new instrument XPS, and in the fourth XPS instruments plus XPF was used. During the instrumentation 2% NaOCl solution was used for rinsing canals. The SEM analysis of the cleaning quality in the apical third of the canal was performed on longitudinal root cross-sections and standardized microphotography with a 2000x magnification. Results The thickest smear layer in the apical third was recorded in the first group (iRa Ce) NiTi instruments (2.12), and somewhat less in the group with the new XPS instrument (1.95). An identical and somewhat smaller amount of smear layer was registered in the second and fourth groups where XPF was used with the final irrigant (1.64) (p lt 0.001). Conclusion The application of only one instrument (XPS) in the canal enabled efficient cleaning of a very complex apical third. Cleaning was more efficient when XPF was used with final irrigant after the canal instrumentation., Uvod Cilj ovog rada je bio da se SEM analizom proceni efikasnost čišćenja apeksne trećine kanala korena primenom novog rotirajućeg NiTi instrumenta XPS uz protokol konvencionalne irigacije. Materijal i metode rada Istraživanje je realizovano u in vitro uslovima na 40 ekstrahovanih jednokorenih zuba podeljenih u četiri grupe. Instrumentacija kanala u prvoj grupi je izvedena setom iRa Ce NiTi rotirajućih instrumenata, a u drugoj je nakon instrumentacije ovim setom za uklanjanje razmaznog sloja korišćen XPF. U trećoj grupi je instrumentacija kanala realizovana novim instrumentom XPS, a u četvrtoj je posle završene instrumentacije takođe korišćen XPS. Irigacija kanala korena u svim grupama je sprovedena 2% rastvorom NaOCl primenom konvencionalnog protokola. SEM analiza kvaliteta čišćenja apeksne trećine kanala je realizovana na uzdužnim presecima korenova i standardizovanim mikrofotografijama na uveličanju od 2000 puta. Rezultati Dobijeni rezultati su pokazali da je najviše razmaznog sloja u apeksnoj trećini zabeleženo u grupi gde je instrumentacija realizovana setom iRa Ce NiTi instrumenata (2,12), a nešto manje u grupi sa novim instrumentom XPS (1,95). Identična i nešto manja količina razmaznog sloja je registrovana u drugoj i četvrtoj grupi, gde je posle završene instrumentacije korišćen XPF (1,64) (p  lt  0,001). Zaključak Primena samo jednog instrumenta (XPS) u instrumentaciji kanala obezbeđuje efikasno čišćenje vrlo kompleksne apeksne trećine. Ovo čišćenje je značajno efikasnije posle primene XPF nakon završene instrumentacije kanala.",
publisher = "Srpsko lekarsko društvo - Stomatološka sekcija, Beograd",
journal = "Stomatološki glasnik Srbije",
title = "The efficacy of XP-endo shaper (XPS) in cleaning the apical third of the root canal, XP-endo shaper (XPS) - efikasnost u čišćenju apeksne trećine kanala",
volume = "64",
number = "4",
pages = "171-178",
doi = "10.1515/sdj-2017-0016"
}
Živković, S., Nešković, J., Jovanović-Medojević, M., Popović-Bajić, M.,& Živković-Sandić, M.. (2017). The efficacy of XP-endo shaper (XPS) in cleaning the apical third of the root canal. in Stomatološki glasnik Srbije
Srpsko lekarsko društvo - Stomatološka sekcija, Beograd., 64(4), 171-178.
https://doi.org/10.1515/sdj-2017-0016
Živković S, Nešković J, Jovanović-Medojević M, Popović-Bajić M, Živković-Sandić M. The efficacy of XP-endo shaper (XPS) in cleaning the apical third of the root canal. in Stomatološki glasnik Srbije. 2017;64(4):171-178.
doi:10.1515/sdj-2017-0016 .
Živković, Slavoljub, Nešković, Jelena, Jovanović-Medojević, Milica, Popović-Bajić, Marijana, Živković-Sandić, Marija, "The efficacy of XP-endo shaper (XPS) in cleaning the apical third of the root canal" in Stomatološki glasnik Srbije, 64, no. 4 (2017):171-178,
https://doi.org/10.1515/sdj-2017-0016 . .
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