A 3-DIMENSIONAL MATHEMATICAL-MODEL OF THE HUMAN MASTICATORY SYSTEM PREDICTING MAXIMUM POSSIBLE BITE FORCES
A 3-DIMENSIONAL MATHEMATICAL-MODEL OF THE HUMAN MASTICATORY SYSTEM PREDICTING MAXIMUM POSSIBLE BITE FORCES
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DOI：
10.1016/0021-9290(88)90219-9
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发表时间：
1988-01-01
影响因子：
2.4
通讯作者：
NAEIJE, M
中科院分区：
文献类型：
--
作者：
KOOLSTRA, JH;VANEIJDEN, TMGJ;NAEIJE, M
描述了一个包含16个肌力和两个关节反作用力的人体咀嚼系统的三维数学模型。该模型允许模拟不同咬合点位置和下颌位置的静态咬合力和伴随的关节反作用力。该模型的系统参数是从身体头部获得的。最大可能的咬合力是使用优化技术计算的；我们使用的优化标准是最活跃的肌肉的相对活动最小化。该模型预测，在每个特定的咬合点，咬合力可以在广泛的方向上产生，最大咬合力的大小取决于其方向。咬合力方向与其最大值之间的关系取决于咬合点位置和下颌位置。一般来说，最大咬合力的方向与垂直于咬合面的方向不一致。
A three-dimensional mathematical model of the human masticatory system, containing 16 muscle forces and two joint reaction forces, is described. The model allows simulation of static bit forces and concomitant joint reaction forces for various bite point locations and mandibular positions. The system parameters for the model were obtained from a cadaver head. Maximum possible bite forces were computed using optimization techniques; the optimization criterion we used was the minimizing of the relative activity of the most active muscle. The model predicts that at each specific bite point, bite forces can be generated in a wide range of directions, and that the magnitude of the maximum bite force depends on its direction. The relationship between bite force direction and its maximum magnitude depends on bite point location and mandibular position. In general, the direction of the largest possible bite force does not coincide with the direction perpendicular to the occlusal plane.