“微植体-上颌骨”三维有限元模型的建立
Construction of the Thr ee - dimensional Finite Element Model of Micro - implant - maxilla
作者：邓锋 张磊 张翼 宋锦璘 樊瑜波
Author：DENG Feng1, ZHANG Lei2, ZHANG Yi2, SONG Jin- lin2, FAN Yu- bo1
收稿日期：2007-04-25 年卷（期）页码：2007,25(02):192-
期刊名称：华西口腔医学杂志
Journal Name：West China Journal of Stomatology
关键字：三维有限元,微植体,支抗,Mimics软件,
Key words：three- dimensional finite element,micro- implant,anchorage,Mimics software,
基金项目：
国家自然科学基金资助项目（10572160）；重庆市科委科研基金资助项目（CSTC2005BB5265）；重庆市卫生局科研基金资助项目（04- 2- 001）
中文摘要
目的探索基于Mimics医学图像处理系统的CT法快速建模新思路，建立几何相似性好、可灵活组装、含微植体的上颌骨三维有限元模型。方法以牙列完整的成人上颌骨为标本，作螺旋CT扫描后将图像传输至Mimics系统进行三维重建，再运用Abaqus对三维模型进行网格划分后建立有限元模型。结果获得几何相似性好、可拆卸的三维有限元模型；探索出一条基于Mimics的生物力学模型快速建模新方法。结论应用高精度螺旋CT成像、Mimics和Abaqus相结合的方法建立含微植体的上颌骨三维有限元模型是切实有效和可行的。Mimics系统有助于快速建模及提高模型的几何相似性。
英文摘要
Objective To explore a new method to construct the three- dimensional finite element model of microimplant- maxilla using Materialise′s interactive medical image control system（Mimics）. Methods The maxilla with all teeth was scanned with Spiral CT and the images were transferred into the Mimics 9.0 software to obtain the threedimensional images. The Abaqus 6.5 software was used to mesh the three- dimensional model and to establish the finite element model. Results A detachable three- dimensional finite element model of micro- implant- maxilla based on Mimics was constructed rapidly, which can be flexibly re- assembled. Conclusion The method of constructing the three- dimensional finite element model of micro- implant- maxilla is available and effective. The geometrical analogy of the model was greatly improved by using the Mimics system.
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