Güth Jan-Frederik, Keul Christine, Liebermann Anja, Schweiger Josef, Edelhoff Daniel, Schubert Oliver
Department of Prosthetic Dentistry at the Center for Dentistry and Oral Medicine (Carolinum), Goethe University Frankfurt am Main, D-60596, Frankfurt am Main, Germany.
Department of Prosthetic Dentistry, University Hospital, LMU Munich, Goethestraße 70, D-80336, Munich, Germany.
Clin Oral Investig. 2024 Dec 16;29(1):17. doi: 10.1007/s00784-024-06084-5.
To assess the clinical performance of tooth-supported 3-unit fixed dental prostheses (FDPs) made from shade-graded monolithic 5Y-PSZ (partly stabilized zirconia) zirconia in terms of survival rate and the quality of restorations based on modified FDI criteria over three-years.
High-translucent shade-graded monolithic zirconia (Lava Esthetic, Solventum Dental Solutions) was used to manufacture maxillary or mandibular three-unit FDPs in the posterior region (N = 22) employing subtractive milling system (Amann Girrbach). All FDPs were bonded with a universal resin cement (Rely X Universal, Solventum Dental Solutions) and evaluated 4 weeks after cementation (baseline) and after 1, 2, and 3 years. The primary objective was to assess the survival and complication rates of the restorations. Furthermore, the quality of the restorations was evaluated based on selected and modified FDI (World Dental Federation) criteria, which encompass functional, aesthetic, and biological parameters. FDI criteria were analyzed using the Fisher-Freeman-Halton exact test.
Twenty-one patients were examined at 1 year, 2 years, and 3 years. The survival rate was 100%. No mechanical complications were observed. A total of 3 biological complications occurred. These were successfully managed without any residual functional impairment. All FDI criteria were found to be clinically acceptable or better.
Monolithic shade-graded zirconia FDPs demonstrated 100% survival at 3 years with a low complication rate.
Fixed 3-unit FDPs made of high-translucent monolithic zirconia might be a viable treatment option in the posterior region, preventing the chipping phenomenon and providing favorable aesthetics while allowing for an efficient digital workflow.
基于改良的FDI标准，评估由色度分级的整体式5Y-PSZ（部分稳定氧化锆）氧化锆制成的牙支持式3单位固定义齿（FDP）在三年中的生存率和修复质量。
使用高透明度色度分级的整体式氧化锆（Lava Esthetic，Solventum Dental Solutions），采用减法铣削系统（Amann Girrbach）制作上颌或下颌后牙区的3单位FDP（N = 22）。所有FDP均用通用树脂水门汀（Rely X Universal，Solventum Dental Solutions）粘结，并在粘结后4周（基线）以及1、2和3年后进行评估。主要目的是评估修复体的生存率和并发症发生率。此外，根据选定并改良的FDI（世界牙科联盟）标准评估修复体质量，该标准涵盖功能、美学和生物学参数。使用Fisher-Freeman-Halton精确检验分析FDI标准。
在1年、2年和3年时对21名患者进行了检查。生存率为100%。未观察到机械并发症。共发生3例生物学并发症。这些并发症均得到成功处理，未留下任何残余功能损害。所有FDI标准在临床上均被认为是可接受的或更好。
整体式色度分级氧化锆FDP在3年时生存率为100%，并发症发生率低。
由高透明度整体式氧化锆制成的固定3单位FDP可能是后牙区一种可行的治疗选择，可防止崩瓷现象，提供良好的美学效果，同时允许高效的数字化工作流程。
