J Am Dent Assoc. 2017 May;148(5):338-341. doi: 10.1016/j.adaj.2017.01.022. Epub 2017 Mar 6.
When treating patients with severely limited mouth openings, it is difficult for the dentist to obtain an impression and fabricate a removable partial denture (RPD) by using traditional methods. Intraoral scanning, computer-aided design, and 3-dimensional (3D) printing have provided alternative methods for fabricating dental prostheses.
The authors present a case in which they aimed to improve the efficiency and quality of fabricating an RPD framework by integrating the technologies of intraoral scanning, computer-aided design, and 3D printing. Initially, the authors reconstructed the digital cast with multiple intraoral scans. Subsequently, the authors designed the virtual RPD framework. On the basis of the virtual framework, the titanium alloy framework was fabricated by means of a 3D printing process, and the authors fitted the final RPD to the patient.
Unlike the traditional method, this integrated system has the potential to design a custom-made dental prosthesis and directly make an RPD framework with complicated patterns.
在治疗张口严重受限的患者时，牙医很难通过传统方法获得印模并制作可摘局部义齿（RPD）。口腔内扫描、计算机辅助设计和三维（3D）打印为制作牙科修复体提供了替代方法。
作者介绍了一个病例，旨在通过整合口腔内扫描、计算机辅助设计和 3D 打印技术来提高 RPD 架制作的效率和质量。首先，作者使用多次口腔内扫描重建数字模型。随后，作者设计了虚拟 RPD 架。在此基础上，通过 3D 打印工艺制造钛合金框架，并为患者试戴最终的 RPD。
与传统方法不同，该集成系统具有设计定制假牙和直接制作复杂图案的 RPD 架的潜力。
