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.
出处
《实用口腔医学杂志》
CAS
CSCD
北大核心
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)
关键词
可摘局部义齿支架
计算机辅助设计
点云模型
Removable partial denture framework
Computer aided design (CAD)
Points Cloud Model