逆向工程技术在重建无牙颌模型中的应用

Application of reverse engineering to reconstruction of dental models

目的 探讨逆向工程技术在重建无牙颌模型中的应用前景 ,为全口义齿的CAD/CAM开发奠定基础。方法 利用逆向工程技术开发出激光线扫描测量仪 ,对牙列缺失患者的无牙颌模型进行扫描 ,通过计算机模拟出无牙颌的三维模型。结果 建立了无牙颌石膏模型的三维CAD模型 ,该图像形态清晰 ,解剖标志明显。结论 逆向工程技术能准确重建无牙颌CAD模型 。

Objective To discuss the foreground of application of reverse engineering reconstruction of dental models and to establish the foundation of developing a system for complete denture CAD/CAM. Methods The models of an edentulous jaw were measured with reverse engineering, and the 3D models were reconstructed with a computer. Results 3D models of the edentulous jaw were achieved. The characteristics of these 3D images were clear and accurate. Conclusion CAD models are reconstructed with reverse engineering accurately and technical problems in 3D model of complete denture CAD/CAM are resolved.