数字化牙模三维重建及快速制造技术研究  

Research on 3D Reconstruction and Rapid Manufacturing of Data Dental Models

作　　者：王淑范[1] 杨永强[2] 孔卫东[3] 林巍 

机构地区：[1]华南理工大学医院,广东广州510641 [2]华南理工大学机械与汽车工程学院 [3]暨南大学第一附属医院 [4]澳门仁康牙齿矫正中心

出　　处：《广东牙病防治》2010年第6期283-287,共5页Journal of Dental Prevention and Treatment

基　　金：广东省自然科学基金资助项目(8151063201000071)

摘　　要：目的解决正畸矫治牙模的存放问题并对正畸过程进行有效指导。方法由i-CAT锥形束CT(cone beam computed tomography,CBCT)扫描获得数据,采用Mimics软件重建牙颌三维实体模型,Magics软件进行数据修补,选区激光烧结快速成型蜡质牙颌模型。结果选用优化的工艺参数,成型了良好表面质量的上下牙颌蜡质模型,整个快速成型过程用时5～6h。结论采用该技术保存CT数据,根据牙科正畸或手术的需要随时快速制造蜡模,可以省去保存石膏模型的不便和麻烦。Objective A new technique combined with digital dental teeth storage,3D reconstruction from CT data and rapid manufacturing of wax model is presented,in order to solve the difficulties of orthodontic models’ storage and get a good reference during orthodontic treatment.Methods Software Mimics and Magics will be used to reconstruct three-dimensional model from CT image scanned by i-CAT CBCT and data fixing respectively.Wax model will be manufactured by selective laser sintering from 3D dental model.Results Upper and lower dental models of wax with good surface quality and high dimension accuracy had been manufactured by selective laser sintering process,and the whole process lasts 5-6 hours.Conclusion The achievement can be applied to reproduction of clinical model from 3D dental models stored in computer,and substitute plaster casts.

关 键 词：数字化牙颌模型 CT数据转化 三维重建 快速成型 选区激光烧结 

分 类 号：R783.2[医药卫生—口腔医学]