摘要
为了探索选择性激光烧结(SLS)技术制作耳廓赝复体蜡模型的可行性,采用层析法获得左侧耳廓数据,三维重建左侧耳廓数字模型,镜像反求出右侧耳廓的三维数字模型,应用选择性激光烧结及复合蜡粉(PCP1)制作出右侧耳廓的快速原型制造(RPM)蜡模型并进行皮肤纹里及毛孔的雕刻,最后经过水浴加热法去蜡复制出硅橡胶耳赝复体。所得的耳廓蜡模型具有良好的外形和精度,达到了临床应用的要求,而且蜡模型可以直接进行赝复体的后期处理工作,制得耳赝复体。研究表明,选择性激光烧结技术和复合蜡粉PCP1可以用于制备复杂形态的耳赝复体蜡模型,该方法与传统制作方法相比,节约了时间和材料,减少了制作步骤,为该技术及材料在颌面赝复体制作中的应用提供了依据。
In order to explore the feasibility of fabricating prosthetic ear with selective laser sintering method, layermilled graphic technique is used to acquire the data of left ear. A 3-D digital model of left ear is produced. A digital model of right ear is produced by mirror imaging. Selective laser sintering （SLS） and wax powder PCP1 are chosen to fabricate a wax right ear model. The skin texture and pore are sculped on the wax model and the prosthetic ear is made by silicone elastomer. The result shows that the right ear wax model is not only distinct and precise, but also can be replaced by silicone elastomer directly. This study suggests that SLS and the new wax powder PCP1 can be used to fabricate prosthetic ear. Comparing with conventional manual methods, the new fabricating method shortens time and simplifies manufacturing steps. This digital and model-free manufacture provide can a new method for the automatic manufacture of maxillofacial prostheses, and will lay the foundation for the clinical application in the future.
出处
《中国激光》
EI
CAS
CSCD
北大核心
2009年第10期2712-2716,共5页
Chinese Journal of Lasers
基金
国家自然科学基金重点项目(30630066)资助项目
关键词
医用光学生物技术
快速原形制造
选择性激光烧结
复合蜡粉
耳
三维重建
medical optics and biotechnology
rapid prototyping manufacture
selective laser sintering
wax power
ear
3-D reconstruction
