不同螺纹深度微小种植体的生物力学三维有限元研究.doc

文档介绍：不同螺纹深度微小种植体的生物力学三维有限元研究
作者:林东,林珊,陈江,郭金泉
【摘要】目的分析不同螺纹深度微小种植体骨界面的生物力学变化,为微小种植体的设计和临床应用提供科学的理论依据。方法采用ANSYSWorkbench有限元软件,建立不同螺距深度的六个三维有限元模型,分别在模型上计算出不同螺纹深度的微小种植体骨界面的VonMises应力及位移分布状况。结果不同螺纹深度的微小种植体VonMises应力及位移的分布均集中于种植体颈部骨皮质区,种植体的VonMises应力值及位移值均较小。螺纹深度的不同对微小种植体骨界面VonMises应力值、位移值有影响, mm的微小种植体VonMises应力峰值、位移峰值最小。结论本实验建立的微小种植体骨组织三维有限元模型具有良好的几何相似性,可对微小种植体及其支持骨组织进行精确的生物力学分析, mm的微小种植体具有较好生物力学特性。
【关键词】模型,解剖学; 牙应力分析; 生物力学; 牙种植; 牙种植体; 有限元分析
A ThreeDimensional Finite Element Analysis on the Influence of Different Depth of Thread on Biomechanical Properties of MicroImplantBone Interface
LIN Dong, LIN Shan, CHEN Jiang,GUO Jinquan
1. Department of Stomatology, Fujian Provincial Frontier Defense Corps Hospital, Fuzhou 350003, China;
2. Department of Stomatology,The First Affiliated Hospital,Fujian Medical University, Fuzhou 350005, China;
3. Department of Stomatology,The Affiliated Stomatological Hospital, Fujian Medical University, Fuzhou 350002, China;
4. College of Mechanical Engineering and Automation, Fuzhou University, Fuzhou 350108, China
ABSTRACT: Objective To establish threedimensional finite element models for microimplantbone and to analyze the influence of different depth of thread on the biomechanical characteristics of microimplantbone interface, with the purpose of providing scientific theoretical basis for the design and clin