基于拓扑优化的可摘局部义齿卡环设计研究  

Research on the clasp of removable partial denture using topology optimization design

作　　者：姜献峰[1] 袁喜根 董研[2] 张雷青[2] 宋荣伟[1] 熊志越 

机构地区：[1]浙江工业大学特种装备制造与先进加工技术教育部重点实验室,浙江杭州310014 [2]浙江大学医学院附属二院口腔科,浙江杭州310009

出　　处：《浙江工业大学学报》2016年第1期15-18,共4页Journal of Zhejiang University of Technology

基　　金：浙江省科技厅科技计划项目(2014C33269)

摘　　要：卡环是可摘局部义齿支架的重要组成部分,它通过弹性卡抱作用将支架固定在口腔里.传统卡环的设计将其设计成等厚结构,导致卡环局部位置过厚、患者异物感明显.将拓扑优化原理运用到卡环的设计中,根据卡环受力状况分析其材料分布,设计出不等厚的卡环,材料利用率高、患者戴用舒适.对卡环进行拓扑优化,根据优化结果进行卡环再设计,判断是否满足要求,满足则输出再设计结果,不满足则需要继续重复再设计,直至满足要求.对优化后的可摘局部义齿支架进行选择性激光熔融(SLM)打印.结果表明:优化后的可摘局部义齿卡环制作用材料少,材料分布合理,满足强度要求.The clasp is important for the removable partial denture（RPD）framework.The RPD can be fixed on nature teeth by the elastic clasp.The same thick clasp could be designed by experience which couldnt lead the material to distribute reasonable traditionally.This paper applies the technology of topology optimization to the design of the clasp to get the different thickness and high material utilization clasp.The new clasp designs as the result of the topology optimization.If the redesigned clasp can be met the requirement of the optimization,the clasp can be output.If not,topology optimizing will be continued until the clasp can be met the requirement.The redesigned clasp after optimizing can be made by the selective laser melting machine.The result indicated that the clasp can be fabricated successfully with least material and can meet the requirement of clinic.

关 键 词：可摘局部义齿 拓扑优化 卡环 选择性激光熔融 

分 类 号：R783.4[医药卫生—口腔医学] TH122[医药卫生—临床医学]