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Analysis of Composite Shrinkage Stresses on 3D Premolar Models with Different Cavity Design using Finite Element Method

Authorized Users Only
2014
Authors
Milošević, Miloš
Mitrović, Nenad
Miletić, Vesna
Tatić, Uroš
Ezdenci, Andrea
Conference object (Published version)
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Abstract
Local polymerization stress occurs due to polymerization shrinkage of resin based composites adhesively bonded to tooth tissues. Shrinkage causes local displacements of cavity walls, with possible occurrence of micro-cracks in the enamel, dentin and/or material itself. In order to design a cavity for experimental testing of polymerization shrinkage of dental composites using 3D optical analysis, in this paper finite element method (FEM) was used to analyze numerical models with different cavity radiuses. 3D optical strain and displacement analysis of composite materials and cavity walls is limited by equipment sensitivity i.e. 0.01% for strain and 1 micron for displacement. This paper presents the development of 3D computer premolar models with varying cavity radiuses, and local stress, strain and displacement analysis using FEM. Model verification was performed by comparing obtained results with data from the scientific literature. Using the FEM analysis of local strains, displacement...s and stresses exerted on cavity walls, it was concluded that the model with 1 mm radius was optimal for experimental optical 3D displacement analysis.

Keywords:
polymerization stress / local mechanical properties / cavity optimization / digital image correlation (DIC) / finite element method (FEM)
Source:
Local Mechanical Properties Ix, 2014, 586, 202-+
Publisher:
  • Trans Tech Publications Ltd, Durnten-Zurich

DOI: 10.4028/www.scientific.net/KEM.586.202

ISSN: 1013-9826

WoS: 000336633500049

Scopus: 2-s2.0-84885747211
[ Google Scholar ]
3
1
URI
https://smile.stomf.bg.ac.rs/handle/123456789/1858
Collections
  • Radovi istraživača
Institution/Community
Stomatološki fakultet
TY  - CONF
AU  - Milošević, Miloš
AU  - Mitrović, Nenad
AU  - Miletić, Vesna
AU  - Tatić, Uroš
AU  - Ezdenci, Andrea
PY  - 2014
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/1858
AB  - Local polymerization stress occurs due to polymerization shrinkage of resin based composites adhesively bonded to tooth tissues. Shrinkage causes local displacements of cavity walls, with possible occurrence of micro-cracks in the enamel, dentin and/or material itself. In order to design a cavity for experimental testing of polymerization shrinkage of dental composites using 3D optical analysis, in this paper finite element method (FEM) was used to analyze numerical models with different cavity radiuses. 3D optical strain and displacement analysis of composite materials and cavity walls is limited by equipment sensitivity i.e. 0.01% for strain and 1 micron for displacement. This paper presents the development of 3D computer premolar models with varying cavity radiuses, and local stress, strain and displacement analysis using FEM. Model verification was performed by comparing obtained results with data from the scientific literature. Using the FEM analysis of local strains, displacements and stresses exerted on cavity walls, it was concluded that the model with 1 mm radius was optimal for experimental optical 3D displacement analysis.
PB  - Trans Tech Publications Ltd, Durnten-Zurich
C3  - Local Mechanical Properties Ix
T1  - Analysis of Composite Shrinkage Stresses on 3D Premolar Models with Different Cavity Design using Finite Element Method
VL  - 586
SP  - 202
EP  - +
DO  - 10.4028/www.scientific.net/KEM.586.202
ER  - 
@conference{
author = "Milošević, Miloš and Mitrović, Nenad and Miletić, Vesna and Tatić, Uroš and Ezdenci, Andrea",
year = "2014",
abstract = "Local polymerization stress occurs due to polymerization shrinkage of resin based composites adhesively bonded to tooth tissues. Shrinkage causes local displacements of cavity walls, with possible occurrence of micro-cracks in the enamel, dentin and/or material itself. In order to design a cavity for experimental testing of polymerization shrinkage of dental composites using 3D optical analysis, in this paper finite element method (FEM) was used to analyze numerical models with different cavity radiuses. 3D optical strain and displacement analysis of composite materials and cavity walls is limited by equipment sensitivity i.e. 0.01% for strain and 1 micron for displacement. This paper presents the development of 3D computer premolar models with varying cavity radiuses, and local stress, strain and displacement analysis using FEM. Model verification was performed by comparing obtained results with data from the scientific literature. Using the FEM analysis of local strains, displacements and stresses exerted on cavity walls, it was concluded that the model with 1 mm radius was optimal for experimental optical 3D displacement analysis.",
publisher = "Trans Tech Publications Ltd, Durnten-Zurich",
journal = "Local Mechanical Properties Ix",
title = "Analysis of Composite Shrinkage Stresses on 3D Premolar Models with Different Cavity Design using Finite Element Method",
volume = "586",
pages = "202-+",
doi = "10.4028/www.scientific.net/KEM.586.202"
}
Milošević, M., Mitrović, N., Miletić, V., Tatić, U.,& Ezdenci, A.. (2014). Analysis of Composite Shrinkage Stresses on 3D Premolar Models with Different Cavity Design using Finite Element Method. in Local Mechanical Properties Ix
Trans Tech Publications Ltd, Durnten-Zurich., 586, 202-+.
https://doi.org/10.4028/www.scientific.net/KEM.586.202
Milošević M, Mitrović N, Miletić V, Tatić U, Ezdenci A. Analysis of Composite Shrinkage Stresses on 3D Premolar Models with Different Cavity Design using Finite Element Method. in Local Mechanical Properties Ix. 2014;586:202-+.
doi:10.4028/www.scientific.net/KEM.586.202 .
Milošević, Miloš, Mitrović, Nenad, Miletić, Vesna, Tatić, Uroš, Ezdenci, Andrea, "Analysis of Composite Shrinkage Stresses on 3D Premolar Models with Different Cavity Design using Finite Element Method" in Local Mechanical Properties Ix, 586 (2014):202-+,
https://doi.org/10.4028/www.scientific.net/KEM.586.202 . .

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