Todorović, A.

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  • Todorović, A. (4)
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Author's Bibliography

Application of Replica Technique and SEM in Accuracy Measurement of Ceramic Crowns

Trifković, Branka; Budak, Igor; Todorović, A.; Hodolić, Janko; Puškar, Tatjana; Jevremović, Danimir; Vukelić, Đorđe

(Versita, Warsaw, 2012)

TY  - JOUR
AU  - Trifković, Branka
AU  - Budak, Igor
AU  - Todorović, A.
AU  - Hodolić, Janko
AU  - Puškar, Tatjana
AU  - Jevremović, Danimir
AU  - Vukelić, Đorđe
PY  - 2012
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/1737
AB  - The paper presents a comparative study of the measuring values of the marginal gap related to the ceramic crowns made by dental CAD/CAM system using the replica technique and SEM. The study was conducted using three experimental groups, which consisted of ceramic crowns manufactured by the Cerec CAD/CAM system. The scanning procedure was carried out using three specialized dental 3D digitization systems from the Cerec family - two types of extraoral optical scanning systems and an intraoral optical scanner. Measurements of the marginal gap were carried out using the replica technique and SEM. The comparison of aggregate values of the marginal gap using the replica technique showed a statistically significant difference between the systems. The measured values of marginal gaps of ceramic crowns using the replica technique were significantly lower compared to those measured by SEM. The results indicate that the choice of technique for measuring the accuracy of ceramic crowns influences the final results of investigation.
PB  - Versita, Warsaw
T2  - Measurement Science Review
T1  - Application of Replica Technique and SEM in Accuracy Measurement of Ceramic Crowns
VL  - 12
IS  - 3
SP  - 90
EP  - 97
DO  - 10.2478/v10048-012-0016-7
ER  - 
@article{
author = "Trifković, Branka and Budak, Igor and Todorović, A. and Hodolić, Janko and Puškar, Tatjana and Jevremović, Danimir and Vukelić, Đorđe",
year = "2012",
abstract = "The paper presents a comparative study of the measuring values of the marginal gap related to the ceramic crowns made by dental CAD/CAM system using the replica technique and SEM. The study was conducted using three experimental groups, which consisted of ceramic crowns manufactured by the Cerec CAD/CAM system. The scanning procedure was carried out using three specialized dental 3D digitization systems from the Cerec family - two types of extraoral optical scanning systems and an intraoral optical scanner. Measurements of the marginal gap were carried out using the replica technique and SEM. The comparison of aggregate values of the marginal gap using the replica technique showed a statistically significant difference between the systems. The measured values of marginal gaps of ceramic crowns using the replica technique were significantly lower compared to those measured by SEM. The results indicate that the choice of technique for measuring the accuracy of ceramic crowns influences the final results of investigation.",
publisher = "Versita, Warsaw",
journal = "Measurement Science Review",
title = "Application of Replica Technique and SEM in Accuracy Measurement of Ceramic Crowns",
volume = "12",
number = "3",
pages = "90-97",
doi = "10.2478/v10048-012-0016-7"
}
Trifković, B., Budak, I., Todorović, A., Hodolić, J., Puškar, T., Jevremović, D.,& Vukelić, Đ.. (2012). Application of Replica Technique and SEM in Accuracy Measurement of Ceramic Crowns. in Measurement Science Review
Versita, Warsaw., 12(3), 90-97.
https://doi.org/10.2478/v10048-012-0016-7
Trifković B, Budak I, Todorović A, Hodolić J, Puškar T, Jevremović D, Vukelić Đ. Application of Replica Technique and SEM in Accuracy Measurement of Ceramic Crowns. in Measurement Science Review. 2012;12(3):90-97.
doi:10.2478/v10048-012-0016-7 .
Trifković, Branka, Budak, Igor, Todorović, A., Hodolić, Janko, Puškar, Tatjana, Jevremović, Danimir, Vukelić, Đorđe, "Application of Replica Technique and SEM in Accuracy Measurement of Ceramic Crowns" in Measurement Science Review, 12, no. 3 (2012):90-97,
https://doi.org/10.2478/v10048-012-0016-7 . .
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Identifying enamel diffusion properties in feline teeth affected with resorptive lesions

Živković, Rade; Todorović, A.; Tihaček-Šojić, Ljiljana; Milić-Lemić, Aleksandra

(Univerzitet u Beogradu - Fakultet veterinarske medicine, Beograd, 2011)

TY  - JOUR
AU  - Živković, Rade
AU  - Todorović, A.
AU  - Tihaček-Šojić, Ljiljana
AU  - Milić-Lemić, Aleksandra
PY  - 2011
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/1658
AB  - Various factors have been suggested in the pathogenesis of feline resorptive lesions, such as periodontal disease, dietary factors, mechanical stress, developmental tooth defects, breed and viral disease, although none of these factors have been definitively proven to be the direct cause. It was recently published that normally enamel in cats is significantly thinner at the cemento-enamel junction, and both enamel and dentine are significantly less mineralized than elsewhere on the tooth. However, it is still unclear what anatomical features of the tooth surface are associated with a predisposition for resorptive lesions, and what is the initiating cause for the clastic activity afterwards. The present study was undertaken with the aim to describe enamel properties of transport and distribution of organic molecules in intact feline teeth and teeth affected with resorptive lesions. The results indicate that damaged enamel is prone to a greater bilateral diffusion process, leading to continuous disruption of the enamel structure. Also, teeth that are subjected to occlusal stress are at greater risk of destruction because micro fractures produce disarrangements in feline dental tissue diffusion homeostasis. The relationship between these features with feline dental resorptive lesions requires further studies.
AB  - U patogenezi dentalnih resorptivnih lezija u mačaka pominju se različiti etiološki faktori kao što su oboljenja parodontalnih tkiva, faktori načina ishrane, mehaničko opterećenje, defekti nastali u toku razvoja zuba i virusna oboljenja. Ni za jedan od navedenih faktora do sada nije potvrđeno da je direktan uzročnik lezija. Nedavno je objavljeno da je gleđ u mačaka na gleđno-cementnoj granici značajno tanja od ostale gleđi, kao i da su gleđ i dentin tog područja mnogo manje mineralizovani nego na ostalim delovima zuba. Ipak nije potvrđeno da li postoje i posebni anatomski delovi zuba koji imaju predispoziciju za nastajanje resorptivnih lezija i šta je inicijalni faktor za kasnije aktiviranje odontoklasta. Istraživanje je sprovedeno sa ciljem da se ispita distribucija i transport organskih molekula intaktne gleđi zuba mačke i gleđi koja je zahvaćena resorptivnim procesom. Rezultati istraživanja prikazuju da je oštećena gleđ podložnija intenzivnijem bilateralnom procesu difuzije, koja dovodi do kontinualnog oštećivanja strukture gleđi. Zubi koji su izloženi okluzalnom opterećenju su takođe pod većim rizikom od propadanja jer mikropukotine koje nastaju usled koncentracije napona uzrokuju poremećaj homeostaze dentalnih tkiva. Utvrđivanje povezanosti faktora difuzije i mehaničkog opterećenja zahteva dodatna istraživanja.
PB  - Univerzitet u Beogradu - Fakultet veterinarske medicine, Beograd
T2  - Acta veterinaria
T1  - Identifying enamel diffusion properties in feline teeth affected with resorptive lesions
T1  - Identifikovanje karakteristika difuzije kroz gleđno tkivo zuba mačke oštećenog resorptivnim procesom
VL  - 61
IS  - 5-6
SP  - 653
EP  - 662
DO  - 10.2298/AVB1106653Z
ER  - 
@article{
author = "Živković, Rade and Todorović, A. and Tihaček-Šojić, Ljiljana and Milić-Lemić, Aleksandra",
year = "2011",
abstract = "Various factors have been suggested in the pathogenesis of feline resorptive lesions, such as periodontal disease, dietary factors, mechanical stress, developmental tooth defects, breed and viral disease, although none of these factors have been definitively proven to be the direct cause. It was recently published that normally enamel in cats is significantly thinner at the cemento-enamel junction, and both enamel and dentine are significantly less mineralized than elsewhere on the tooth. However, it is still unclear what anatomical features of the tooth surface are associated with a predisposition for resorptive lesions, and what is the initiating cause for the clastic activity afterwards. The present study was undertaken with the aim to describe enamel properties of transport and distribution of organic molecules in intact feline teeth and teeth affected with resorptive lesions. The results indicate that damaged enamel is prone to a greater bilateral diffusion process, leading to continuous disruption of the enamel structure. Also, teeth that are subjected to occlusal stress are at greater risk of destruction because micro fractures produce disarrangements in feline dental tissue diffusion homeostasis. The relationship between these features with feline dental resorptive lesions requires further studies., U patogenezi dentalnih resorptivnih lezija u mačaka pominju se različiti etiološki faktori kao što su oboljenja parodontalnih tkiva, faktori načina ishrane, mehaničko opterećenje, defekti nastali u toku razvoja zuba i virusna oboljenja. Ni za jedan od navedenih faktora do sada nije potvrđeno da je direktan uzročnik lezija. Nedavno je objavljeno da je gleđ u mačaka na gleđno-cementnoj granici značajno tanja od ostale gleđi, kao i da su gleđ i dentin tog područja mnogo manje mineralizovani nego na ostalim delovima zuba. Ipak nije potvrđeno da li postoje i posebni anatomski delovi zuba koji imaju predispoziciju za nastajanje resorptivnih lezija i šta je inicijalni faktor za kasnije aktiviranje odontoklasta. Istraživanje je sprovedeno sa ciljem da se ispita distribucija i transport organskih molekula intaktne gleđi zuba mačke i gleđi koja je zahvaćena resorptivnim procesom. Rezultati istraživanja prikazuju da je oštećena gleđ podložnija intenzivnijem bilateralnom procesu difuzije, koja dovodi do kontinualnog oštećivanja strukture gleđi. Zubi koji su izloženi okluzalnom opterećenju su takođe pod većim rizikom od propadanja jer mikropukotine koje nastaju usled koncentracije napona uzrokuju poremećaj homeostaze dentalnih tkiva. Utvrđivanje povezanosti faktora difuzije i mehaničkog opterećenja zahteva dodatna istraživanja.",
publisher = "Univerzitet u Beogradu - Fakultet veterinarske medicine, Beograd",
journal = "Acta veterinaria",
title = "Identifying enamel diffusion properties in feline teeth affected with resorptive lesions, Identifikovanje karakteristika difuzije kroz gleđno tkivo zuba mačke oštećenog resorptivnim procesom",
volume = "61",
number = "5-6",
pages = "653-662",
doi = "10.2298/AVB1106653Z"
}
Živković, R., Todorović, A., Tihaček-Šojić, L.,& Milić-Lemić, A.. (2011). Identifying enamel diffusion properties in feline teeth affected with resorptive lesions. in Acta veterinaria
Univerzitet u Beogradu - Fakultet veterinarske medicine, Beograd., 61(5-6), 653-662.
https://doi.org/10.2298/AVB1106653Z
Živković R, Todorović A, Tihaček-Šojić L, Milić-Lemić A. Identifying enamel diffusion properties in feline teeth affected with resorptive lesions. in Acta veterinaria. 2011;61(5-6):653-662.
doi:10.2298/AVB1106653Z .
Živković, Rade, Todorović, A., Tihaček-Šojić, Ljiljana, Milić-Lemić, Aleksandra, "Identifying enamel diffusion properties in feline teeth affected with resorptive lesions" in Acta veterinaria, 61, no. 5-6 (2011):653-662,
https://doi.org/10.2298/AVB1106653Z . .
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Microstructural analyses of two high noble gold-platinum alloys before and after conditioning in a cell culture medium

Rudolf, Rebeka; Anžel, Ivan; Gusel, L.; Stamenković, D.; Todorović, A.; Čolić, Miodrag

(Korean Inst Metals Materials, Seoul, 2010)

TY  - JOUR
AU  - Rudolf, Rebeka
AU  - Anžel, Ivan
AU  - Gusel, L.
AU  - Stamenković, D.
AU  - Todorović, A.
AU  - Čolić, Miodrag
PY  - 2010
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/1579
AB  - Microstructures of two high noble experimental Au-Pt alloys were compared before and after conditioning for biocompatibility, in order to identify phases and microelements responsible for the alloys' corrosive behaviour. Microstructural characterization was carried-out by optical and scanning electron microscopy, in addition to energy dispersive X-ray analysis. X-ray diffraction was applied to determine the phases' composition and their contribution in the alloys. Additionally, simultaneous thermal analysis was used to identify the temperatures of phase transformations. An overall assessment before conditioning showed that Au-Pt I is a two-phase alloy containing a dominant Au-rich alpha(1) phase and a minor Pt-rich alpha(2) phase, while the Au-Pt II alloy contains in addition three minor phases: AuZn3, Pt3Zn and Au1.4Zn0.52. The highest content of Zn (up to 6.76 wt.%) was detected in the Pt3Zn phase. After RPMI cell culture medium conditioning, the Pt3Zn and AuZn3 phases disappeared, suggesting that they are predominantly responsible for Zn loss and the lower corrosive stability of the Au-Pt II alloy.
PB  - Korean Inst Metals Materials, Seoul
T2  - Metals & Materials International
T1  - Microstructural analyses of two high noble gold-platinum alloys before and after conditioning in a cell culture medium
VL  - 16
IS  - 6
SP  - 931
EP  - 940
DO  - 10.1007/s12540-010-1211-4
ER  - 
@article{
author = "Rudolf, Rebeka and Anžel, Ivan and Gusel, L. and Stamenković, D. and Todorović, A. and Čolić, Miodrag",
year = "2010",
abstract = "Microstructures of two high noble experimental Au-Pt alloys were compared before and after conditioning for biocompatibility, in order to identify phases and microelements responsible for the alloys' corrosive behaviour. Microstructural characterization was carried-out by optical and scanning electron microscopy, in addition to energy dispersive X-ray analysis. X-ray diffraction was applied to determine the phases' composition and their contribution in the alloys. Additionally, simultaneous thermal analysis was used to identify the temperatures of phase transformations. An overall assessment before conditioning showed that Au-Pt I is a two-phase alloy containing a dominant Au-rich alpha(1) phase and a minor Pt-rich alpha(2) phase, while the Au-Pt II alloy contains in addition three minor phases: AuZn3, Pt3Zn and Au1.4Zn0.52. The highest content of Zn (up to 6.76 wt.%) was detected in the Pt3Zn phase. After RPMI cell culture medium conditioning, the Pt3Zn and AuZn3 phases disappeared, suggesting that they are predominantly responsible for Zn loss and the lower corrosive stability of the Au-Pt II alloy.",
publisher = "Korean Inst Metals Materials, Seoul",
journal = "Metals & Materials International",
title = "Microstructural analyses of two high noble gold-platinum alloys before and after conditioning in a cell culture medium",
volume = "16",
number = "6",
pages = "931-940",
doi = "10.1007/s12540-010-1211-4"
}
Rudolf, R., Anžel, I., Gusel, L., Stamenković, D., Todorović, A.,& Čolić, M.. (2010). Microstructural analyses of two high noble gold-platinum alloys before and after conditioning in a cell culture medium. in Metals & Materials International
Korean Inst Metals Materials, Seoul., 16(6), 931-940.
https://doi.org/10.1007/s12540-010-1211-4
Rudolf R, Anžel I, Gusel L, Stamenković D, Todorović A, Čolić M. Microstructural analyses of two high noble gold-platinum alloys before and after conditioning in a cell culture medium. in Metals & Materials International. 2010;16(6):931-940.
doi:10.1007/s12540-010-1211-4 .
Rudolf, Rebeka, Anžel, Ivan, Gusel, L., Stamenković, D., Todorović, A., Čolić, Miodrag, "Microstructural analyses of two high noble gold-platinum alloys before and after conditioning in a cell culture medium" in Metals & Materials International, 16, no. 6 (2010):931-940,
https://doi.org/10.1007/s12540-010-1211-4 . .
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Mechanical properties and microstructure characterisation of Au-Pt dental alloy

Rudolf, Rebeka; Zupančič-Hartner, Tjaša; Kosec, L.; Todorović, A.; Kosec, Borut; Anžel, Ivan

(Croatian Metallurgical Society, 2008)

TY  - JOUR
AU  - Rudolf, Rebeka
AU  - Zupančič-Hartner, Tjaša
AU  - Kosec, L.
AU  - Todorović, A.
AU  - Kosec, Borut
AU  - Anžel, Ivan
PY  - 2008
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/1440
AB  - Development of a dental alloy with high Au content is based on the ternary system of Au-Pt-Zn with a nominal composition of 86,9Au-9,9Pt-1,5Zn, and about 1,5 wt.% micro-alloying elements (in, Ir, Rh). The results analyses of different heat-treated states showed that the optimal mechanical properties and hardness of an Au-Pt-Zn alloy can be reached with combinations of heat treatment for 20 minutes at 723 K and then slowly cooling, if the alloy was annealed at 1223 K for 30 minutes and the water quenched. Research results confirmed that the microstructure of the Au-Pt-Zn alloy consists of two phases: alpha(1)-phase rich in Au (main phase) and alpha(2)-phase rich in Pt (minor phase). During XRD analysis and use of the Rietveld method, it was found that the alpha(1)-phase content is about 98,5 wt.% while the content of alpha(2)-phase is 1,5 wt.%. STA analyses show that the Au-Pt-Zn alloy has a solidus temperature of about 1292 K and a liquidus temperature of about 1412 K.
PB  - Croatian Metallurgical Society
T2  - Metalurgija
T1  - Mechanical properties and microstructure characterisation of Au-Pt dental alloy
VL  - 47
IS  - 4
SP  - 317
EP  - 323
UR  - https://hdl.handle.net/21.15107/rcub_smile_1440
ER  - 
@article{
author = "Rudolf, Rebeka and Zupančič-Hartner, Tjaša and Kosec, L. and Todorović, A. and Kosec, Borut and Anžel, Ivan",
year = "2008",
abstract = "Development of a dental alloy with high Au content is based on the ternary system of Au-Pt-Zn with a nominal composition of 86,9Au-9,9Pt-1,5Zn, and about 1,5 wt.% micro-alloying elements (in, Ir, Rh). The results analyses of different heat-treated states showed that the optimal mechanical properties and hardness of an Au-Pt-Zn alloy can be reached with combinations of heat treatment for 20 minutes at 723 K and then slowly cooling, if the alloy was annealed at 1223 K for 30 minutes and the water quenched. Research results confirmed that the microstructure of the Au-Pt-Zn alloy consists of two phases: alpha(1)-phase rich in Au (main phase) and alpha(2)-phase rich in Pt (minor phase). During XRD analysis and use of the Rietveld method, it was found that the alpha(1)-phase content is about 98,5 wt.% while the content of alpha(2)-phase is 1,5 wt.%. STA analyses show that the Au-Pt-Zn alloy has a solidus temperature of about 1292 K and a liquidus temperature of about 1412 K.",
publisher = "Croatian Metallurgical Society",
journal = "Metalurgija",
title = "Mechanical properties and microstructure characterisation of Au-Pt dental alloy",
volume = "47",
number = "4",
pages = "317-323",
url = "https://hdl.handle.net/21.15107/rcub_smile_1440"
}
Rudolf, R., Zupančič-Hartner, T., Kosec, L., Todorović, A., Kosec, B.,& Anžel, I.. (2008). Mechanical properties and microstructure characterisation of Au-Pt dental alloy. in Metalurgija
Croatian Metallurgical Society., 47(4), 317-323.
https://hdl.handle.net/21.15107/rcub_smile_1440
Rudolf R, Zupančič-Hartner T, Kosec L, Todorović A, Kosec B, Anžel I. Mechanical properties and microstructure characterisation of Au-Pt dental alloy. in Metalurgija. 2008;47(4):317-323.
https://hdl.handle.net/21.15107/rcub_smile_1440 .
Rudolf, Rebeka, Zupančič-Hartner, Tjaša, Kosec, L., Todorović, A., Kosec, Borut, Anžel, Ivan, "Mechanical properties and microstructure characterisation of Au-Pt dental alloy" in Metalurgija, 47, no. 4 (2008):317-323,
https://hdl.handle.net/21.15107/rcub_smile_1440 .
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