Estimation of masticatory forces for patient-specific analysis of the human mandible
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説明
This paper 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. The method is applied to a patient whose jaw has a severe deformity, and the influence of the criteria is examined. The muscular forces of the numerical result with the consideration of the all three criteria well agree to the analysis of EMG signals. Individual stress analysis under the estimated mechanical condition is also performed. There is no stress concentration and little difference in stress distribution on both left and right sides in spite of the asymmetrical mandibular shape and masticatory condition. The numerical result suggests mechanical adaptation of mandible by the masticatory forces.
収録刊行物
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- WIT Transactions on Biomedicine and Health
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WIT Transactions on Biomedicine and Health 1 491-500, 2005-08-22
WIT Press