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全口义齿数字化设计系统

Keywords: 全口义齿,中性区,数字化,计算机辅助设计

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Abstract:

为了取代全口义齿传统经验型的手工制作方法,将数字化技术与中性区理论相结合,研发了全口义齿的数字化设计系统.该系统附带完全类型的人工牙数据库,采用"人工牙库=人工牙三维模型库+患者个性生物特征库"的知识结构描述方法,不仅重建了三维牙模,而且增了点、轴、坐标系等生理特征几何基准,建立起人工牙与选牙、排牙决策方案的相关性.排牙时,系统基于无牙颌模型的曲率特征,自动创建上前牙、下前牙、上后牙、下后牙的排牙线,同时制定了区域参数化排牙法则,实现了人工牙在排牙线上的个性化就位.最后基于特征曲面造型法,完成基托的设计.本系统以SCOLL语言为平台开发,界面友好,在任意设计阶段都可穿插人机交互,实现了个性、自动而又不失人性化的数字化设计流程.

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