【摘要】 目的:制作出可以在生物材料试验机上完成颏部下颌姿势位撞击试验的下颌骨模型并测试其有效性。方法:3具新鲜离体下颌骨标本,利用牙托粉和下颌骨,根据Hanau牙合架原理制备对牙合模型,在生物材料试验机上进行验证。结果:制备出下颌骨撞击模型,模拟符合实际的骨折类型,3例标本的响应时间分别为15.5ms、16.7ms、18.3ms,平均为16.83ms,撞击力峰值分别为2037.69N、2130.19N和2225.42N,平均为2131.73N。结论:下颌骨撞击模型可以完成颏部下颌姿势位的动态撞击试验,并为其他牙合位撞击试验和有限元分析奠定基础。更多还原

【Abstract】 Aim: To construct the mandible impact model under mandibular postural position (MPP) with MTS biological material testing machine.Methods:To make simple mandibular collision models with 3 cases of fresh and intact human mandibular specimens with artificial tooth material according to the principle of Hanau articulator with MTS biological material testing machine.Results: The simple mandibular collision model matching physiological conditions was manufactured. The response time of 3 specimens was 15.5 ms,16.7 ms,and 18.3 ms, and the average was 16.83 ms and the average maximum impact stress was 2 131.73N. Conclusion: The level mandible impact experiment under MPP can be completed with the model on MTS biological material testing machine. It was the basis of other mandibular position impact test and finite element analysis.更多还原