下颌后牙双端种植桥及其支持组织修复前后三维有限元模型的建立  

Establishment of a three-dimensional finite element model of mandible surrounding solely or splinted implant-borne fixed partial denture

作　　者：马莉莎[1] 唐亮[2] 潘燕环[3] 

机构地区：[1]南方医科大学珠江医院口腔科,广东省广州市510240 [2]暨南大学医学院口腔系,广东省广州市510632 [3]暨南大学理工学院应用力学研究所,广东省广州市510632

出　　处：《中国组织工程研究与临床康复》2011年第43期7994-7997,共4页Journal of Clinical Rehabilitative Tissue Engineering Research

基　　金：广东省自然科学基金项目(31912)~~

摘　　要：背景:三维有限元分析法是研究种植桥及其周围骨组织力学分布规律的重要手段,其精度受控于模型的准确及对真实状态的模拟。目的:建立下颌后牙双端种植桥及其支持组织修复前后的三维有限元模型。方法:利用Pro/E建模软件与CT结合,建立部分下颌骨、牙冠以及种植体的三维实体模型,通过无缝接口功能导入有限元软件中,最终分别建立双端种植桥修复前后的有限元模型。结果与结论:采用CT扫描技术、Pro/E与ANSYS软件相结合所建立的下颌种植桥及其支持组织修复前后模型切实可行,具有高度的几何相似性和力学相似性,可满足模拟加载的需要。BACKGROUND：Three-dimensional finite element model has been widely used in previous studies,accurate construction of which provides research support for the optimization of implant bridge design.OBJECTIVE：To establish a three-dimensional finite element model of solely and splinted implants in the mandible,as the mathematical foundation of biomechanical research.METHODS：Three-dimensional finite element models were created of a 765 section of the mandible with solely and splinted implants embedded in,by using CT scanning technology,the Pro/Engineer software and the ANSYS software.RESULTS AND CONCLUSION：The three-dimensional finite element model was good in geometry,which could serve for the needs of the three-dimensional stress analysis.CT scanning aided finite element model building,used with Pro/Engineer software and ANSYS software,is a convenient and credible method.

关 键 词：双端桥 种植体 骨界面 支持组织 三维有限元法 

分 类 号：R318[医药卫生—生物医学工程]