Tasopoulos Theodoros, Zoidis Panagiotis, Shahin Heidar, Kouveliotis George, Rizou Vassiliki, Naka Olga
Private Practice, Athens, Greece.
Department of RDS, Division of Prosthodontics, University of Florida College of Dentistry, Gainesville, Florida, USA.
J Esthet Restor Dent. 2025 Sep 28. doi: 10.1111/jerd.70040.
To highlight the application of digitally fabricated Snap-On PMMA provisional restorations as a minimally invasive and adaptable methodology for assessing the vertical dimension of occlusion and occlusal stability during the comprehensive rehabilitation of worn dentition.
A clinical case is presented involving a 58-year-old male with severe anterior tooth wear, multiple edentulous spaces, and occlusal dysfunction. The patient underwent full-arch digital rehabilitation through a workflow incorporating intraoral scanning, facial scanning, cone-beam computed tomography (CBCT), and virtual smile design. Snap-On PMMA milled provisional restorations enabled real-time evaluation of the proposed VDO, phonetics, esthetics, and centric occlusion in a reversible, non-invasive manner. Their use also enabled immediate implant loading at site #22 and facilitated the digital transfer of the validated occlusal scheme from the provisional stage to the definitive CAD/CAM restorations. Definitive restorations were fabricated using monolithic zirconia and lithium disilicate, selected for their superior mechanical strength, longevity, and esthetic potential.
Snap-On PMMA provisional restorations represent an effective diagnostic and transitional tool in the management of worn dentition. Integrated into a fully digital workflow, they enhance treatment predictability by allowing reversible clinical validation and direct digital transfer of occlusal parameters to the final prostheses. Combined with advanced restorative materials, this approach improves treatment predictability, patient satisfaction, and the long-term clinical success of managing complex cases of worn dentition.
Snap-On PMMA provisionals offer a minimally invasive, reversible way to assess occlusion, function, and esthetics before final restoration. This technique enhances accuracy and predictability in full-mouth rehabilitations, making it highly valuable in esthetic dentistry.
强调数字化制作的预成式聚甲基丙烯酸甲酯（PMMA）临时修复体在牙列磨损综合修复过程中作为一种微创且适应性强的方法，用于评估咬合垂直距离和咬合稳定性的应用。
介绍了一例临床病例，患者为一名58岁男性，有严重的前牙磨损、多个牙缺失间隙和咬合功能障碍。患者通过包含口内扫描、面部扫描、锥形束计算机断层扫描（CBCT）和虚拟微笑设计的工作流程接受了全牙弓数字化修复。预成式PMMA铣削临时修复体能够以可逆、非侵入性的方式实时评估拟议的咬合垂直距离（VDO）、语音、美学和正中咬合。它们的使用还使得能够在22号位点立即进行种植体加载，并便于将经过验证的咬合方案从临时阶段数字转移到最终的计算机辅助设计/计算机辅助制造（CAD/CAM）修复体。最终修复体采用整体式氧化锆和二硅酸锂制作，因其具有卓越的机械强度、耐久性和美学潜力而被选用。
预成式PMMA临时修复体是牙列磨损管理中一种有效的诊断和过渡工具。整合到全数字化工作流程中，它们通过允许进行可逆的临床验证以及将咬合参数直接数字转移到最终修复体，提高了治疗的可预测性。结合先进的修复材料，这种方法提高了治疗的可预测性、患者满意度以及处理复杂牙列磨损病例的长期临床成功率。
预成式PMMA临时修复体提供了一种微创、可逆的方法，用于在最终修复前评估咬合、功能和美学。该技术提高了全口修复的准确性和可预测性，在美容牙科中具有很高的价值。
