鼻缺损修复CAD/CAM系统的开发——汉族人三维标准外鼻形态数据库的建立  

Construction of 3-D standard external nasal morphological database for nasal prostheses

作　　者：刘晓芳[1] 赵铱民[1] 吴国锋[1] 王懿[1] 渠乐[1] 沈丽娟[1] 

机构地区：[1]西安第四军医大学口腔医学院口腔修复学教研室

出　　处：《实用口腔医学杂志》2006年第6期835-837,共3页Journal of Practical Stomatology

摘　　要：目的:提供具有汉族人群标准数值的多种形态的三维数字外鼻,建立标准鼻型数据库,以满足鼻缺损患者赝复的需要。方法:采集30岁以下男女的6种类型共12个外鼻,取模,灌超硬石膏模型,然后通过三维激光扫描测量系统转换为.asc格式的三维数字化模型。将数字模型按照解剖形态分为6区构面,添加颜色进行可视化显示,以.igs格式保存。在SUrFACER10.5软件中重现各鼻.asc格式的三维图形,测量鼻长、鼻宽,然后用张万洲1011个汉族成人鼻鼻长、鼻宽的活体测量结果,取代.asc和.igs格式各鼻鼻长、鼻宽的测量结果,将数据存盘。结果:得到12个大小一致的标准外鼻的点云构型文件和曲面构型文件以及各自的二维图片,分别按照6类理想鼻型以树状结构存盘。结论:构建了三维标准外鼻形态数据库,为鼻缺损修复CAD/CAM系统的应用奠定了基础。Objective： To Construct 3-D standard external nasal morphological database for nasal prostheses. Methods： 12 plaster models of 6 types of external nose were prepared and scanned by a lasser scanner. The data documents were primarily saved as . asc format. The digital noses were partitioned to six areas by the nasal anatomical features： Nasal bridge area, nasal tip and collumella area,left and right dorsal areas,left and right ala nostril areas, the surface model of each area was constructed and connected to a group. With adding the background color, the surface model of external nose was visualized from any observing angles; then the nasal length and width were measured and the original data were replaced by HAN standard data. 12 digital nose models with the same size were obtained and the documents were saved by each type with both . asc format and . igs format. Results ： Point-cloud data and surface model data of 6 types of standard external digital noses were obtained. Conclusion：The nasal morphological database may be used as the foundation for CAD/CAM technique preparation of nasal prostheses.

关 键 词：计算机辅助设计与制作 激光扫描 形态数据库 

分 类 号：R765[医药卫生—耳鼻咽喉科]