1207 Estimation of Masticatory Forces of the Human Mandible and Patient Specific Stress Analysis

Abstract

This study proposes an estimation method of the masticatory forces using an objective function composed of three criteria: efficiency of muscular activities, moment balance between muscular and biting forces, and reaction forces at condyles. Our previous study applied the method to a patient whose jaw had a severe deformity, and showed validity of the method. This paper applies the method to a patient with a symmetrical jaw. The numerical result shows an unrealistic masticatory condition, such as there are non-working muscles. The plausible solution of this problem is discussed.