1206 Mechanical Analysis of Temporomandibular Joint with Anterior Disc Displacement by 3-D FE Method

Abstract

The purpose of this study is to investigate stress distributions of the mandibular fossa and condyle about the human temporomandibular joint (TMJ) with and without anterior disc displacement by three dimensional finite element method (FEM). The following results were obtained that the stress distributions at anterior mandibular head were larger than posterior in the case of normal temporomandibular joint. In the case of anterior disk displacement of the left TMJ, the stress distributions at anterior mandibular head were larger than posterior and it was larger than normal temporomandibular joint.