NAZEM DAWOD, ANAMARIA FLORESCU, IULIAN VASILE ANTONIAC, DAN IOAN STOIA, VIOLETA HANCU, FLORENTINA CORNELIA BICLESANU THE FEA STUDY OF THE BIOMECANIC BEHAVIOR OF CANINE RECONSTRUCTED WITH COMPOSITE RESIN
The aim of the finite element analysis (FEA) is to determine the stress and deformation state of all elements of four mechanical assemblies under certain loading and fastening conditions of the structure. The structure of the finite element analysis consists of GIC and 4 geometric variables (no bone loss, 1 surface radial loss, 2 surfaces and circumferential loss). Geometric reconstruction of simulated elements is done based on the X-ray scan images. 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. Four geometric models were made and the assembly described above was inserted. Finite element analysis was performed with the Ansys 13 software. For resin composite restorations, in the case of circumferentilly bone loss, the restoration pressure drops due to increased tooth elastic deformation possibilities. In case of bone loss on one face and two sides of the tooth, there is a strong pressure on the cementum-bone interface, due to the bending effect that occurs. Pressures in dental root restorations are higher in the case of reconstruction using resin composite.
Keywords: finite element analysis, composite resin, rooth caries