Polymerization shrinkage is the single most important local deformation of dental composites that has a substantial effect on the quality of the tooth-restoration interface in clinical conditions. The aim of this study was to investigate the possibility to analyze local deformation fields of a dental composite upon polymerization using the 3D optical method of digital image correlation with two cameras. Conventional, microhybrid composite samples were prepared in custom-made Teflon molds and polymerized with a conventional halogen light. Local deformation fields were determined using the two-camera system, Aramis 2M, by correlating sample dimensions before and after polymerization. The greatest deformations of up to 6 % with the average of 3.5 % were observed along the periphery of the samples in contrast to substantially lower deformations of about 1-1.5% in the central parts. Polymerization of dental composites yields heterogeneous deformation with variations in shrinkage values. The... 3D optical system is a promising tool enabling qualitative and quantitative mapping of local deformation fields in dental composites.
Keywords:
dental composites / polymerization shrinkage / deformation / light curing units / digital correlation
TY - JOUR
AU - Milošević, Miloš
AU - Miletić, Vesna
AU - Mitrović, Nenad
AU - Manojlović, Dragica
AU - Savić-Sikoparija, Tatjana
AU - Maneski, Tasko
PY - 2011
UR - https://smile.stomf.bg.ac.rs/handle/123456789/1606
AB - Polymerization shrinkage is the single most important local deformation of dental composites that has a substantial effect on the quality of the tooth-restoration interface in clinical conditions. The aim of this study was to investigate the possibility to analyze local deformation fields of a dental composite upon polymerization using the 3D optical method of digital image correlation with two cameras. Conventional, microhybrid composite samples were prepared in custom-made Teflon molds and polymerized with a conventional halogen light. Local deformation fields were determined using the two-camera system, Aramis 2M, by correlating sample dimensions before and after polymerization. The greatest deformations of up to 6 % with the average of 3.5 % were observed along the periphery of the samples in contrast to substantially lower deformations of about 1-1.5% in the central parts. Polymerization of dental composites yields heterogeneous deformation with variations in shrinkage values. The 3D optical system is a promising tool enabling qualitative and quantitative mapping of local deformation fields in dental composites.
PB - Chemicke Listy, Prague 6
T2 - Chemicke Listy
T1 - Measurement of local deformation fields in dental composites using 3d optical system
VL - 105
SP - S751
EP - S753
UR - https://hdl.handle.net/21.15107/rcub_smile_1606
ER -
@article{
author = "Milošević, Miloš and Miletić, Vesna and Mitrović, Nenad and Manojlović, Dragica and Savić-Sikoparija, Tatjana and Maneski, Tasko",
year = "2011",
abstract = "Polymerization shrinkage is the single most important local deformation of dental composites that has a substantial effect on the quality of the tooth-restoration interface in clinical conditions. The aim of this study was to investigate the possibility to analyze local deformation fields of a dental composite upon polymerization using the 3D optical method of digital image correlation with two cameras. Conventional, microhybrid composite samples were prepared in custom-made Teflon molds and polymerized with a conventional halogen light. Local deformation fields were determined using the two-camera system, Aramis 2M, by correlating sample dimensions before and after polymerization. The greatest deformations of up to 6 % with the average of 3.5 % were observed along the periphery of the samples in contrast to substantially lower deformations of about 1-1.5% in the central parts. Polymerization of dental composites yields heterogeneous deformation with variations in shrinkage values. The 3D optical system is a promising tool enabling qualitative and quantitative mapping of local deformation fields in dental composites.",
publisher = "Chemicke Listy, Prague 6",
journal = "Chemicke Listy",
title = "Measurement of local deformation fields in dental composites using 3d optical system",
volume = "105",
pages = "S751-S753",
url = "https://hdl.handle.net/21.15107/rcub_smile_1606"
}
Milošević, M., Miletić, V., Mitrović, N., Manojlović, D., Savić-Sikoparija, T.,& Maneski, T.. (2011). Measurement of local deformation fields in dental composites using 3d optical system. in Chemicke Listy
Chemicke Listy, Prague 6., 105, S751-S753.
https://hdl.handle.net/21.15107/rcub_smile_1606
Milošević M, Miletić V, Mitrović N, Manojlović D, Savić-Sikoparija T, Maneski T. Measurement of local deformation fields in dental composites using 3d optical system. in Chemicke Listy. 2011;105:S751-S753.
https://hdl.handle.net/21.15107/rcub_smile_1606 .
Milošević, Miloš, Miletić, Vesna, Mitrović, Nenad, Manojlović, Dragica, Savić-Sikoparija, Tatjana, Maneski, Tasko, "Measurement of local deformation fields in dental composites using 3d optical system" in Chemicke Listy, 105 (2011):S751-S753,
https://hdl.handle.net/21.15107/rcub_smile_1606 .
