单侧眼眶部缺损修复的计算机辅助设计

目的：利用三维设计软件对单侧眼眶部缺损进行修复体的计算机辅助设计，探讨颜面部缺损修复设计的新方法。方法：通过激光扫描仪对一例单侧眼眶部缺损患者石膏面部模型进行数据采集，经三维设计软件处理数据，依据健侧眼眶部组织设计出缺损处组织外形。结果：由激光扫描采得的面部模型数据清晰、精确；通过Digisurf逆向工程软件对面部点数据构面和设计，利用健侧眼眶部组织数据镜面反转到缺损处修复缺损设计获得成功。结论：利用激光扫描技术和三维设计软件可以圆满地完成单侧眼眶部缺损修复的设计。

The computer-aided design for the restoration of unilateral orbital defect

Objective: To develop a computer-aided three-dimensional design software and laser scanning technique for the restoration of unilateral orbital defect. Method: By laser scanning apparatus plaster face model and the acquired primitive face point data were scanned; with the three-dimensional design software the point data were reconstructed to one smooth face surface image and the data of the defect of the orbital tissue were obtained from the normal contralateral tissue data by software. Results: The face-model data obtained by laser scanning apparatus was distinct and precise; the Digisurf retrograde engineer software succeeded to fulfill the computer-aided design for restoration of unilateral orbital defect. Conclusion: The laser scanning technique and three-dimensional design software can be used in the computer-aided design of the unilateral orbital defect restoration.