可摘局部义齿支架三维CAD方法的初步研究  

A preliminary study on the design of removable partial denture framework using CAD method

作　　者：王勇[1] 吕培军[1] 吴琳[2] 王亚平[3] 

机构地区：[1]北京大学口腔医学院.口腔医院,100081 [2]中国医科大学口腔医学院 [3]北京航天航空大学机械学院

出　　处：《实用口腔医学杂志》2007年第3期321-324,共4页Journal of Practical Stomatology

基　　金：国家863课题资助(编号:2006AA03Z446)

摘　　要：目的:通过对KennedyⅡ类2亚类可摘局部义齿支架的三维计算机辅助设计,探索其CAD方法。方法:采用基于点云及曲线曲面的混合建模技术,按照临床设计原则,在牙列缺损三维重建模型上对卡环、支托、舌杆及加强网等支架部件分别构建其组织面、磨光面等,完成支架的三维设计。结果:初步建立了可摘局部义齿支架的三维计算机辅助设计方法,得到了个性化的局部义齿支架的三维几何模型。结论:混合建模技术可以实现可摘局部义齿支架的三维计算机辅助设计。Objective：To investigate the feasibility of 3-D computer aided design （CAD） for the framework of a mandibular Kennedy Class Ⅱ , Modification 2 arch. Methods：In terms of the principle of clinical design, the 3-D framework was built with the technique of mixed model of points cloud, curves and surfaces on the reconstructed model of a partially edentulous cast, including the tissue surfaces and polishing surfaces of every component, such as clasp, rest, lingual bar and mesh construction, etc. Results：Preliminarily, a CAD method for 3-D RPD framework design was established and a individualized RPD framework 3D geometric model was set up. Conclusion： CAD for RPD framework design based on the mixed model of points cloud, curves and surfaces is feasible.

关 键 词：可摘局部义齿支架 计算机辅助设计 点云模型 

分 类 号：R783.6[医药卫生—口腔医学]