【摘要】 介绍了一种利用计算机辅助设计上颌骨缺损修复的新方法。首先利用螺旋CT扫描数据进行上颌骨的三维数据重建,通过逆向工程的方法做出其CAD模型,然后对上颌骨CAD模型进行上颌骨修复体的个体化设计。设计出的支架很好地恢复了原来的上颌骨形态。利用快速原型技术制作出树脂修复体,然后铸造出钛合金修复体支架。最后,可以将钛合金修复体支架密合地佩带在患者模型上,验证了该方法是有效的、可行的。更多还原

【Abstract】 This paper presents a new method of designing restoration model of maxillectomy defect through Computer aided technology. Firstly, 3D maxillectomy triangle mesh model is constructed from Helical CT data. Secondly, the triangle mesh model is transformed into initial computer-aided design (CAD) model of maxillectomy through reverse engineering software. Thirdly, the 3D virtual restoration model of maxillary defect is obtained after designing and adjusting the initial CAD model through CAD software according to the patient’s practical condition. Therefore, the 3D virtual restoration can be fitted very well with the broken part of maxilla. The exported design data can be manufactured using rapid prototyping technology and foundry technology. Finally, the result proved that this method is effective and feasible.更多还原