A digital and cast-free workflow for fabricating a definitive hollow obturator prosthesis for a maxillectomy defect: A dental technique

Dan Ma; Xin Wang; Tingmin Zhang; Shizhu Bai

doi:10.1016/j.prosdent.2023.11.011

A digital and cast-free workflow for fabricating a definitive hollow obturator prosthesis for a maxillectomy defect: A dental technique

J Prosthet Dent. 2023 Dec 19:S0022-3913(23)00759-X. doi: 10.1016/j.prosdent.2023.11.011. Online ahead of print.

Authors

Dan Ma¹, Xin Wang¹, Tingmin Zhang¹, Shizhu Bai²

Affiliations

¹ Graduate student, Digital Center, School of Stomatology, The Fourth Military Medical University, State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Xi'an, Shaanxi, PR China.
² Associate Professor, Digital Center, School of Stomatology, The Fourth Military Medical University, State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Xi'an, Shaanxi, PR China. Electronic address: baishizhu@foxmail.com.

PMID: 38123417
DOI: 10.1016/j.prosdent.2023.11.011

Abstract

This article presents a novel digital and cast-free workflow for fabricating a definitive hollow obturator prosthesis. A digital altered cast is made after the framework-fitting appointment to maximize support. The framework, hollow obturator base, and teeth are digitally designed, additively manufactured, and then assembled precisely without a cast. This method simplifies the laboratory process, reduces human errors, and provides a prosthesis with high accuracy and good fit.