Assistant Professor, Division of General Dentistry, School of Dentistry, Loma Linda University, Loma Linda, Calif.
Assistant Professor, Advanced Specialty Education Program in Prosthodontics, School of Dentistry, Loma Linda University, Loma Linda, Calif.
J Prosthet Dent. 2019 Apr;121(4):694-697. doi: 10.1016/j.prosdent.2018.06.019. Epub 2019 Jan 31.
This article reports an approach to fabricating a maxillary obturator using the computer-aided design and computer-aided manufacturing (CAD-CAM) process. The maxillary definitive cast and the trial tooth arrangement were separately scanned and superimposed. The virtual cast created from the scan data was surveyed, and the framework was designed using specific software. The definitive cobalt-chromium framework was fabricated by using 3-dimensional (3D) selective laser sintering (SLS) technology. After framework trial placement, the definitive obturator prosthesis was processed using conventional heat-polymerizing resin with the lost-wax processing technique. Using CAD technology and 3D metal printing resulted in improved fit, function, and esthetics for the definitive obturator prosthesis.
这篇文章介绍了一种使用计算机辅助设计和计算机辅助制造（CAD-CAM）工艺制作上颌修复体的方法。分别扫描上颌终末模型和试排牙，将扫描数据叠加，对虚拟模型进行测量，使用特定软件设计支架。采用三维（3D）选择性激光烧结（SLS）技术制作钴铬终末支架。试排牙后，采用失蜡铸造技术，用常规热聚合树脂制作最终的修复体。使用 CAD 技术和 3D 金属打印技术可提高最终修复体的适配性、功能性和美观性。
