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Finite Element Stress Analysis of Indirect Restorations Prepared in Cavity Bases
Dental materials journal
The objective of this study was to analyze the distribution of tensile stresses in indirect restorations prepared in several composite cavity bases. Elastic moduli of 20 materials were measured by nanoindentation technique for finite element analysis. Axisymmetric models of posterior onlays were constructed using combinations of two onlay materials and three cavity base materials. Thickness of resin cement was 50 μm. A vertical load of 95.5 N was applied on the cusp tip. Maximum stress of 18.1doi:10.4012/dmj.26.274 fatcat:33wejfacdbh5pkwuef2rwfob6m