以3DMAX软件建立Mini-SG附着体三维实体模型

Reconstruction of a three-dimensional solid model of Mini-SG~ attachment in 3DMAX

背景:Mini-SG附着体是一种冠外精密附着体,具有固位作用强,稳定性好,美观舒适,保护基牙等优点。但在常规CT三维建模中,由于其结构精密细小,很难建立精确的附着体模型,虽然利用Micro-CT可达到1μm的精度,但建模工作量庞大,费时费力,更造成了检测对象的X射线辐射。目的:建立Mini-SG附着体三维实体模型。方法:通过网络查询结合游标卡尺测量获得Mini-SG附着体阳性部件与阴性部件的实际精确尺寸数据,利用3DMAX软件处理,在计算机中还原并建立三维实体模型。结果与结论:通过测量以及现有的Mini-SG附着体精确数据,利用3DMAX软件建模功能,巧妙运用布尔运算可以进行精确Mini-SG附着体实体模型的建立,结合3DMAX软件强大的渲染功能,形象地体现了Mini-SG附着体的三维实体模型。以此类推,只要能够获得附着体,种植体等口腔修复体的精确数据,就可以通过3DMAX软件的建模功能和渲染功能建立精确完整的实体模型。

BACKGROUND：Mini-SG attachment is a kind of extra-coronal precision attachment,which is characterized by strong retention,good stability,aesthetics and comfort,as well as protecting the abutment.However,it is difficult to make a precise three-dimensional（3-D） solid model though conventional CT due to its precise and tiny structure.Although the precision can reach 1 μm using Micro-CT,it encounters the huge workload,time-consuming and hard sledding,also with radiation damage from X-ray.OBJECTIVE：To reconstruct 3-D solid model of Mini-SG attachment.METHODS：According to the actual exact size of Mini-SG attachment positive components and negative components obtained from network and measurement with vernier caliper,the 3-D solid model of Mini-SG attachment was reconstructed with 3DMAX software in computer.RESULTS AND CONCLUSION：The precise 3-D solid model of Mini-SG attachment has been reconstructed according to existing or measurable precise data through the use of boolean calculation with 3DMAX software.Accordingly,an accurate 3D model of an oral prosthesis like attachment,implant as long as their accurate data can be acquired.