硬腭骨膜下种植体支持的赝复体修复无牙上颌骨缺损有限元模型的建立  

Construction of the three-dimensional finite element model of defective edentulous cranial-maxillary complex rehabilitated by palatal-subperiosteal-implant-supported prosthesis

作　　者：邱宜农[1] 周金芳[2] 步荣发[1] 刘洪臣[1] 

机构地区：[1]解放军总医院口腔医学中心,博士生主治医师北京100853 [2]中科院兰州化学物理研究所,副研究员甘肃730000

出　　处：《口腔颌面修复学杂志》2008年第2期127-130,共4页Chinese Journal of Prosthodontics

摘　　要：目的:为种植赝复体设计,建立硬腭骨膜下种植体支持的赝复体修复无牙上颌骨缺损的三维有限元模型。方法:利用Mimics软件读取CT数据并初步构建颅上颌3D模型,经逆向工程软件Geomagic拟合模型生成非统一有理B样条曲面,Pro-E软件生成种植体,最终在Ansys中编辑装配完成并进行材料赋值和网格划分。结果:获得了由225、073个单元,76、682个节点组成的具有较高几何和生物相似性的目标三维有限元模型。结论:根据CT数据联合运用Mimics,Geomagic,Pro-E和Ansys软件,可以建立满意的复杂三维有限元模型。Objective： To construct a three-dimensional finite element model of defective edentulous cranial-maxillary complex rehabilitated by palatal-subperiosteal-implant-supported prosthesis. Methods： A primary 3D model of cranialmaxillary complex was created with Mimics software based on CT scanning data, which was then fitted into Non-Uniform Rational B-Splines surface with Geomagic software, the model of subperiolsteal implant was designed and constituted using Pro-E software based on model above. All the parts were modified and integrated into the definitive model with Ansys soflare. Results： A three-dimensional finite element model of defective edentulous cranial-maxillary complex with prosthesis supported by palatal subperiosteal implant, having tetrahedron 225,073 units and 76, 682 nodes, was established, Conclusion： The three-dimensional finite element model representing a complicated actual system can be constructed satisfactorily with combinational use of the software above.

关 键 词：种植体 骨膜下种植体 三维有限元模型 颅上颌复合体 缺损修复 

分 类 号：R782[医药卫生—口腔医学]