Abstract

The aim of this study is to determine the stress behavior of a GIC root decay restoration with the finite element analysis (FEA). The structure of the finite element analysis consists of GIC material and 4 geometric variables (no bone loss, 1 surface radial loss, 2 surfaces and circumferential loss). Material and Method Geometric reconstruction of simulated elements is done based on the X-ray. The DICOM image collection is imported into Mimics 10.01, where two color layers are applied, which are then transformed into volumes. Surface integrity was accomplished using Geomagic Studio 2013 software. Subsequent to the reconstruction, classical geometric modeling was carried out using the SolidWorks 2013 CAD environment. Finite element analysis was performed with the Ansys 13 software. Results In case of GIC restorations, among the three types of bone loss there are no significant differences in the stresses at the level of the same elements of the assembly. The maximum values of the restoration stresses, in the case of without bone loss simulation, exceed the maximum adhesion strength of GIC. Instead, in the situation with bone loss, the stress state in the restoration is reduced due to the deformation suffered by the tooth. Conclusions Pressures in dental root restorations are lower in the case of reconstruction using GIC.

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