磨牙全颈环CAD/CAM内冠的制作  

An Experimental Research on the Fabrication of the Fused Porcelain to CAD/CAM Molar Crown

作　　者：戴宁[1] 周永耀[2] 廖文和[1] 俞青[3] 安涛[1] 焦益群[1] 

机构地区：[1]南京航空航天大学江苏省数字化设计制造工程技术研究中心,357信箱南京210016 [2]苏州六六视觉科技股份有限公司,苏州215005 [3]南京市口腔医院修复科,南京210008

出　　处：《生物医学工程学杂志》2007年第1期129-132,共4页Journal of Biomedical Engineering

基　　金：江苏省科技攻关项目(BE2005014);南京市医学发展计划项目(200504022);南京市医学科技发展计划项目(ZKX0420)

摘　　要：试验了制作磨牙全颈环CAD/CAM内冠的全过程。首先利用三维激光测量仪对牙预备体模型进行数据测量;其次拟合重构出冠内表面;然后精确地设计修复体龈边缘处的位置和外形特征,构造出内冠三维实体模型;最后在小型高速数控铣床上加工出实物。结果表明:加工的全颈环内冠实物质量稳定、精度高,且佩戴在预备体上的贴合效果也较好。This paper introduced the fabrication process of the fused porcelain to molar crown with CAD/ CAM technology. Firstly, preparation teeth data was retrieved by the 3D-optical measuring system. Then, we have reconstructed the inner surface designed the outer surface shape with the computer aided design software. Finally, the mini high-speed NC milling machine was used to produce the fused porcelain to CAD/CAM molar crown. The result has proved that the fabrication process is reliable and efficient. The dental restoration quality is steady and precise.

关 键 词：全颈环内冠 CAD/CAM 三维重建 

分 类 号：R783[医药卫生—口腔医学]