Clinical Assistant Professor, Department of Prosthodontics, Yonsei University College of Dentistry, Seoul, Republic of Korea.
Certified Dental Technician, Central Dental Laboratory, Yonsei University Dental Hospital, Seoul, Republic of Korea.
J Prosthet Dent. 2021 Apr;125(4):588-591. doi: 10.1016/j.prosdent.2020.01.046. Epub 2020 Apr 22.
This article describes a combined conventional and digital workflow for fabricating removable partial dentures (RPDs). After scanning the dental cast and RPD framework assembly, artificial teeth and denture base regions were designed using computer-aided design software. The artificial teeth and denture base assembly was milled as a single structure by using a wax disk and then placed on the RPD framework. The artificial teeth were additionally milled from a polymethyl methacrylate disk. Conventional procedures were followed for denture investment until the wax elimination procedure, after which the assembly was replaced with the artificial teeth in the cope of the flasks, and the denture resin material was injected to process the RPD. This technique enabled the RPD to be fabricated in the same form as the design state.
本文描述了一种用于制作可摘局部义齿(RPD)的传统与数字化相结合的工作流程。在扫描牙列模型和 RPD 支架组件后,使用计算机辅助设计软件设计人工牙和义齿基托区域。使用蜡盘将人工牙和义齿基托组件铣削成单一结构,然后将其放置在 RPD 支架上。再从聚甲基丙烯酸甲酯盘上铣削出人工牙。在蜡型去除程序之前,遵循常规的义齿包埋步骤,然后将组件更换为模型中人工牙,将义齿树脂材料注入到模型中以加工 RPD。该技术使 RPD 能够以与设计状态相同的形式制作。