Private Practice, Oporto, Portugal.
Private Practice, São Paulo, Brazil.
J Esthet Restor Dent. 2024 Apr;36(4):566-572. doi: 10.1111/jerd.13157. Epub 2023 Oct 26.
The reverse impression method involves the extraoral digitalization of the interim implant-supported prostheses and intraoral digitalization of antagonist arch and maxillomandibular relationship. This technique allows the fabrication of implant-supported prostheses by using a complete-digital workflow. The scan analogs make the reverse impression method feasible. However, this method may not be recommended if the interim polymethyl methacrylate prosthesis does not have passive fit. The present manuscript describes an altered reverse impression technique that involves the extraoral digitalization of a conventional verification jig, which has attached scan analogs. With this technique modification, the implant positions captured using the verification jig are used to obtain the virtual definitive implant cast and fabricate the definitive implant-supported prosthesis.
反向印模法包括对临时种植体支持的修复体进行口外数字化,以及对对颌牙弓和上下颌关系进行口内数字化。该技术允许通过全数字化工作流程来制作种植体支持的修复体。扫描模拟使得反向印模法成为可能。然而,如果临时聚甲基丙烯酸甲酯修复体没有被动适合,则不建议使用该方法。本文描述了一种改良的反向印模技术,该技术涉及对外科辅助定位模板进行口外数字化,该模板附有扫描模拟体。通过这种技术修改,可以使用外科辅助定位模板捕获的种植体位置来获得虚拟的最终种植体模型,并制作最终的种植体支持的修复体。