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中文摘要：
为分析对比3种可摘局部义齿修复重建肯氏I类缺失牙列的生物力学效果,对中国力学虚拟人数据库中现有模型进行改建,以此为基础形成三臂卡环固位、RPI卡环固位和种植体支持的RPI卡环固位3种不同方案的几何及有限元模型,导入ABAQUS6.5-1完成相应有限元分析,采用垂直载荷和斜向载荷,较好地模拟了口腔咀嚼过程.分析结果表明,RPI卡环固位义齿对抗垂直载荷与斜向载荷能力均优于三臂卡环固位义齿;有种植体支持的RPI卡环固位义齿对抗斜向载荷能力优于无种植体支持的RPI卡环固位义齿.
英文摘要：
To investigate the biomechanical effects of three removable partial dentures,the 3D finite element analysis（FEA） models of the mandible with molar missing,rehabilitated using traditional,RPI and implant-supported removable partial denture,were built based on models from the Mechanical Virtual Human of China database.The FEA was conducted in ABAQUS6.5-1.Two types of forces,vertical and oblique force,were loaded on these models.The FEA results suggest that the RPI removable partial denture is more helpful than the traditional RPD against the vertical and oblique loads,and the implant-supported RPD is more helpful than the other two,especially under oblique loading.
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