TY  - JOUR
AU  - Apostolska, Sonja
AU  - Gjorgievska, Elizabeta
AU  - Rendžova, Vasilka
AU  - Eftimoska, Marina
AU  - Živković, Rade
AU  - Stančić, Ivica
PY  - 2017
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2243
AB  - Introduction. The aim of this in vitro study was to test and analyze the sealing ability of three endodontic materials used for permanent obturation, in between the dentin walls and the gutta-percha points, using a scanning electron microscope. Material and Methods. Forty-five recently extracted single-root teeth, treated by a step-back technique, were divided into three groups (15 teeth in each); the canals were filled with three different permanent obturation materials: N2 - zinc oxide root canal cement, Gutta Flow (Coltene), and Endomethasone N (Septodont). Their sealing ability and adhesive properties were analyzed using field emission gun scanning electron microscope, at the time when they were applied between the dentin walls of the canal and the gutta-percha. Results. The results of the scanning electron microscope analysis have shown that all the three sealers have good adhesion properties when used over the root canal walls in the apical third. Good adaptation of the filling used for the root canal walls in the middle and the cervical third was found only in teeth obturated using Gutta Flow, while samples obturated by N2 - zinc oxide root canal cement and Endomethasone showed the weakest adhesion, and greatest number of cracks between the sealer and the canal wall. Conclusion. When using a single-cone obturation technique, compared to other obturation materials, Gutta Flow shows considerably better adaptation to the root canal wall and the gutta-percha points in the apical, middle, and the cervical third of the root.
AB  - Uvod. Cilj ove in vitro studije je testiranje i analiziranje sposobnosti zaptivanja tri različita endodontska materijala koji se upotrebljavaju za definitivno punjenje između dentinskih zidova i gutaperke poena, primenom elektronskog mikroskopa. Materijal i metode. Četrdeset pet ekstrahovanih jednokorenih zuba, tretiranih step-back tehnikom bili su podeljeni u tri grupe (po 15 zuba u svakoj od njih), kanali su bili ispunjeni trima različitim materijalima za definitivnu opturaciju kanala: cink-oksid eugenolom, Gutta Flow (Coltene) i Endomethasone N (Septodont). Elektronskim mikroiskopom sa emisijom polja analizirani su adhezivna sposobnost i zaptivanje materijala za punjenje između dentinskih zidova korencskog kanala i gutaperke. Rezultati. Analiza elektronski skeniranih mikrofotografija pokazala je da sva tri materijala imaju dobru adheziju karakterističnu za njihovu primenu na zidovima kanala korena u apikalnoj trećini. Dobra adaptacija punjenja za zidove kanala korena u srednje i cervikalne trećine pronađena je samo na uzorke opturisanih metodom Gutta Flow, a uzorci koji su bili opturisani sa cink-oksid eugenolom, i Endomethason-om N imali su najslabiju adheziju i najveće prisustvo pukotina između silera i zida kanala. Kada se primenjuje single-cone tehnika za opturaciju kanala, Gutta Flow pokazuje znatno bolju adaptaciju za zid korenskog kanala i gutaperke u apikalni deo kao i u srednjoj i cervikalnoj trećini korena u poređenju sa drugim materijalima za opturaciju kanala.
PB  - Društvo lekara Vojvodine Srpskog lekarskog društva, Novi Sad
T2  - Medicinski pregled
T1  - Adaptability of different canal sealers to the root canal dentin: Scanning electron microscopy analysis
T1  - Adaptabilnost različitih kanalnih punjenja za dentin korenskog kanala - analiza elektronski skeniranih mikrofotografija
VL  - 70
IS  - 5-6
SP  - 141
EP  - 145
DO  - 10.2298/MPNS1706141A
ER  - 

@article{
author = "Apostolska, Sonja and Gjorgievska, Elizabeta and Rendžova, Vasilka and Eftimoska, Marina and Živković, Rade and Stančić, Ivica",
year = "2017",
abstract = "Introduction. The aim of this in vitro study was to test and analyze the sealing ability of three endodontic materials used for permanent obturation, in between the dentin walls and the gutta-percha points, using a scanning electron microscope. Material and Methods. Forty-five recently extracted single-root teeth, treated by a step-back technique, were divided into three groups (15 teeth in each); the canals were filled with three different permanent obturation materials: N2 - zinc oxide root canal cement, Gutta Flow (Coltene), and Endomethasone N (Septodont). Their sealing ability and adhesive properties were analyzed using field emission gun scanning electron microscope, at the time when they were applied between the dentin walls of the canal and the gutta-percha. Results. The results of the scanning electron microscope analysis have shown that all the three sealers have good adhesion properties when used over the root canal walls in the apical third. Good adaptation of the filling used for the root canal walls in the middle and the cervical third was found only in teeth obturated using Gutta Flow, while samples obturated by N2 - zinc oxide root canal cement and Endomethasone showed the weakest adhesion, and greatest number of cracks between the sealer and the canal wall. Conclusion. When using a single-cone obturation technique, compared to other obturation materials, Gutta Flow shows considerably better adaptation to the root canal wall and the gutta-percha points in the apical, middle, and the cervical third of the root., Uvod. Cilj ove in vitro studije je testiranje i analiziranje sposobnosti zaptivanja tri različita endodontska materijala koji se upotrebljavaju za definitivno punjenje između dentinskih zidova i gutaperke poena, primenom elektronskog mikroskopa. Materijal i metode. Četrdeset pet ekstrahovanih jednokorenih zuba, tretiranih step-back tehnikom bili su podeljeni u tri grupe (po 15 zuba u svakoj od njih), kanali su bili ispunjeni trima različitim materijalima za definitivnu opturaciju kanala: cink-oksid eugenolom, Gutta Flow (Coltene) i Endomethasone N (Septodont). Elektronskim mikroiskopom sa emisijom polja analizirani su adhezivna sposobnost i zaptivanje materijala za punjenje između dentinskih zidova korencskog kanala i gutaperke. Rezultati. Analiza elektronski skeniranih mikrofotografija pokazala je da sva tri materijala imaju dobru adheziju karakterističnu za njihovu primenu na zidovima kanala korena u apikalnoj trećini. Dobra adaptacija punjenja za zidove kanala korena u srednje i cervikalne trećine pronađena je samo na uzorke opturisanih metodom Gutta Flow, a uzorci koji su bili opturisani sa cink-oksid eugenolom, i Endomethason-om N imali su najslabiju adheziju i najveće prisustvo pukotina između silera i zida kanala. Kada se primenjuje single-cone tehnika za opturaciju kanala, Gutta Flow pokazuje znatno bolju adaptaciju za zid korenskog kanala i gutaperke u apikalni deo kao i u srednjoj i cervikalnoj trećini korena u poređenju sa drugim materijalima za opturaciju kanala.",
publisher = "Društvo lekara Vojvodine Srpskog lekarskog društva, Novi Sad",
journal = "Medicinski pregled",
title = "Adaptability of different canal sealers to the root canal dentin: Scanning electron microscopy analysis, Adaptabilnost različitih kanalnih punjenja za dentin korenskog kanala - analiza elektronski skeniranih mikrofotografija",
volume = "70",
number = "5-6",
pages = "141-145",
doi = "10.2298/MPNS1706141A"
}

Apostolska, S., Gjorgievska, E., Rendžova, V., Eftimoska, M., Živković, R.,& Stančić, I.. (2017). Adaptability of different canal sealers to the root canal dentin: Scanning electron microscopy analysis. in Medicinski pregled
Društvo lekara Vojvodine Srpskog lekarskog društva, Novi Sad., 70(5-6), 141-145.
https://doi.org/10.2298/MPNS1706141A

Apostolska S, Gjorgievska E, Rendžova V, Eftimoska M, Živković R, Stančić I. Adaptability of different canal sealers to the root canal dentin: Scanning electron microscopy analysis. in Medicinski pregled. 2017;70(5-6):141-145.
doi:10.2298/MPNS1706141A .

Apostolska, Sonja, Gjorgievska, Elizabeta, Rendžova, Vasilka, Eftimoska, Marina, Živković, Rade, Stančić, Ivica, "Adaptability of different canal sealers to the root canal dentin: Scanning electron microscopy analysis" in Medicinski pregled, 70, no. 5-6 (2017):141-145,
https://doi.org/10.2298/MPNS1706141A . .

TY  - JOUR
AU  - Trišić, Dijana
AU  - Ćetenović, Bojana
AU  - Jovanović, Igor
AU  - Gjorgievska, Elizabeta
AU  - Popović, Branka
AU  - Marković, Dejan
PY  - 2017
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2248
AB  - Background/Aim: The aim of this in vitro study was to investigate the influence of irradiation cycles and resting periods, on thermal effects on the external root surface during root canal irradiation of two diode laser systems (940 nm and 975 nm), at output powers of 1 W and 2 W in continuous mode. In previous studies the rising of temperature above 7°C has been reported as biologically accepted to avoid periodontal damage on the external root surface. Material and Methods: Twenty human inferior incisors were randomly distributed into four groups, the 940 nm, and the 975 nm diode laser irradiation, both with an output power of 1 W and 2 W, in continuous mode. The thermographic camera was used to detect temperature variations on the external root surface. Digital radiography of the samples was made. Results: After three cycles of irradiation, at apical third of the root, mean temperature variation by 940 nm diode laser irradiation was 2.88°C for output power of 1 W, and 6.52°C for output power of 2 W. The 975 nm laser caused a higher temperature increase in the apical region, with temperature variation of 13.56°C by an output power of 1 W, and 30.60°C at 2 W, with a statistical significance of p ≤ 0.0001 between two laser systems compared for the same power. The resting periods of 20 s between cycles were enough to lower temperature under 7°C in the case of 1 W and 2 W for 940 nm diode laser, while for 975 nm laser, after three irradiation cycles overheating occurred at both output power rates. Conclusion: Three cycles irradiation of 940 nm diode laser, with resting periods of 20 seconds, allowed safe usage of 1 W and 2 W in CW for endodontic treatment. For 975 nm at a power rate of 1 W, the last resting period drop the temperature near the safe limit and it came under 7°C in a period less than a minute, while at the power of 2 W the resting periods were not long enough for the safe temperature decrease.
PB  - Udruženje stomatologa Balkana
T2  - Balkan Journal of Dental Medicine
T1  - Diode laser irradiation in endodontic therapy through cycles: In vitro study
VL  - 21
IS  - 2
SP  - 108
EP  - 111
DO  - 10.1515/bjdm-2017-0016
ER  - 

@article{
author = "Trišić, Dijana and Ćetenović, Bojana and Jovanović, Igor and Gjorgievska, Elizabeta and Popović, Branka and Marković, Dejan",
year = "2017",
abstract = "Background/Aim: The aim of this in vitro study was to investigate the influence of irradiation cycles and resting periods, on thermal effects on the external root surface during root canal irradiation of two diode laser systems (940 nm and 975 nm), at output powers of 1 W and 2 W in continuous mode. In previous studies the rising of temperature above 7°C has been reported as biologically accepted to avoid periodontal damage on the external root surface. Material and Methods: Twenty human inferior incisors were randomly distributed into four groups, the 940 nm, and the 975 nm diode laser irradiation, both with an output power of 1 W and 2 W, in continuous mode. The thermographic camera was used to detect temperature variations on the external root surface. Digital radiography of the samples was made. Results: After three cycles of irradiation, at apical third of the root, mean temperature variation by 940 nm diode laser irradiation was 2.88°C for output power of 1 W, and 6.52°C for output power of 2 W. The 975 nm laser caused a higher temperature increase in the apical region, with temperature variation of 13.56°C by an output power of 1 W, and 30.60°C at 2 W, with a statistical significance of p ≤ 0.0001 between two laser systems compared for the same power. The resting periods of 20 s between cycles were enough to lower temperature under 7°C in the case of 1 W and 2 W for 940 nm diode laser, while for 975 nm laser, after three irradiation cycles overheating occurred at both output power rates. Conclusion: Three cycles irradiation of 940 nm diode laser, with resting periods of 20 seconds, allowed safe usage of 1 W and 2 W in CW for endodontic treatment. For 975 nm at a power rate of 1 W, the last resting period drop the temperature near the safe limit and it came under 7°C in a period less than a minute, while at the power of 2 W the resting periods were not long enough for the safe temperature decrease.",
publisher = "Udruženje stomatologa Balkana",
journal = "Balkan Journal of Dental Medicine",
title = "Diode laser irradiation in endodontic therapy through cycles: In vitro study",
volume = "21",
number = "2",
pages = "108-111",
doi = "10.1515/bjdm-2017-0016"
}

Trišić, D., Ćetenović, B., Jovanović, I., Gjorgievska, E., Popović, B.,& Marković, D.. (2017). Diode laser irradiation in endodontic therapy through cycles: In vitro study. in Balkan Journal of Dental Medicine
Udruženje stomatologa Balkana., 21(2), 108-111.
https://doi.org/10.1515/bjdm-2017-0016

Trišić D, Ćetenović B, Jovanović I, Gjorgievska E, Popović B, Marković D. Diode laser irradiation in endodontic therapy through cycles: In vitro study. in Balkan Journal of Dental Medicine. 2017;21(2):108-111.
doi:10.1515/bjdm-2017-0016 .

Trišić, Dijana, Ćetenović, Bojana, Jovanović, Igor, Gjorgievska, Elizabeta, Popović, Branka, Marković, Dejan, "Diode laser irradiation in endodontic therapy through cycles: In vitro study" in Balkan Journal of Dental Medicine, 21, no. 2 (2017):108-111,
https://doi.org/10.1515/bjdm-2017-0016 . .