Coupled Thermal and Structural Finite Element Solution of Dental Crown Structures

Authors : MA Gungor, S Mammadzada, F Sen, C Artunc

Pages : 11-25

View : 11 | Download : 8

Publication Date : 2010-09-01

Article Type : Research Paper

Abstract :The objective of this study is to calculate the temperature and thermal stress distributions related to time as a result of hot/cold liquid intake to the mouth utilizing finite element analysis insert ignore into journalissuearticles values(FEA);. The crown models were developed and analyzed using ANSYS software. In the first step of the study, the temperature changes under thermal loading as a result of hot/cold liquid in the mouth were obtained depending on time. In the second step, the thermal stresses produced by temperature changes were calculated. The distributions of temperatures and thermal stresses were drawn for some critical nodes. The effect of different metal and ceramic substrates on thermal response was considered. In the research, Ni-Cr alloy insert ignore into journalissuearticles values(NC); substrate experienced the highest values of thermal stresses; comparatively the lowest stresses were calculated for Alumina core insert ignore into journalissuearticles values(AL); substrate. The values of the maximum thermal stresses for Zirconia core insert ignore into journalissuearticles values(ZrO2); and IPS Empress 2 insert ignore into journalissuearticles values(IE 2); were very close, but the values of it used IE 2 was smaller that ZrO2.
Keywords : All ceramics, finite element analysis, stress distribution, thermal fatigue