Liu Hengyi, Inokoshi Masanao, Xu Kaiqi, Tonprasong Watcharapong, Minakuchi Shunsuke, Van Meerbeek Bart, Vleugels Jef, Zhang Fei
Department of Gerodontology and Oral Rehabilitation, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo, Tokyo 113-8549, Japan.
KU Leuven (University of Leuven), Department of Oral Health Sciences, BIOMAT & UZ Leuven (University Hospitals Leuven), Dentistry, Kapucijnenvoer 7 blok a, B-3000 Leuven, Belgium.
Jpn Dent Sci Rev. 2023 Dec;59:312-328. doi: 10.1016/j.jdsr.2023.08.007. Epub 2023 Sep 6.
Zirconia restorations are increasingly popular in dental treatment. Yttria-stabilized zirconia (YSZ) needs to be sintered for clinical applications and novel speed-sintering protocols are being developed for chairside treatments. Whether the properties of speed-sintered YSZ meet clinical requirements, however, remains unclear. Therefore, we conducted a systematic review and meta-analysis on the influence of speed-sintering on the optical and mechanical properties of dental YSZ according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) 2020 guidelines. A literature search was conducted using PubMed, Embase, and Web of Science databases for relevant articles published between January 1, 2010 and February 28, 2022 in English, Chinese, or Japanese. After full-text evaluation and quality assessment, 26 articles were selected. Meta-analysis revealed that speed-sintering does not significantly affect the CIEDE2000-based translucency parameter, contrast ratio, three-point flexural strength, biaxial flexural strength, or fracture toughness of YSZ ( < 0.01) compared to conventional sintering. However, the CIELab-based translucency parameter of conventionally sintered YSZ is higher than that of speed-sintered YSZ. The descriptive analysis indicated that speed-sintering does not affect the hardness of YSZ compared to that of conventionally sintered YSZ. The results indicate that speed-sintering is suitable for preparing YSZ for dental restorations.
氧化锆修复体在牙科治疗中越来越受欢迎。用于临床应用的氧化钇稳定氧化锆（YSZ）需要进行烧结，并且正在开发用于椅旁治疗的新型快速烧结方案。然而，快速烧结的YSZ的性能是否满足临床要求仍不清楚。因此，我们根据系统评价和荟萃分析的首选报告项目（PRISMA）2020指南，对快速烧结对牙科YSZ光学和力学性能的影响进行了系统评价和荟萃分析。使用PubMed、Embase和Web of Science数据库对2010年1月1日至2022年2月28日期间以英文、中文或日文发表的相关文章进行了文献检索。经过全文评估和质量评估，选择了26篇文章。荟萃分析显示，与传统烧结相比，快速烧结对基于CIEDE2000的透明度参数、对比度、三点弯曲强度、双轴弯曲强度或YSZ的断裂韧性没有显著影响（<0.01）。然而，传统烧结的YSZ基于CIELab的透明度参数高于快速烧结的YSZ。描述性分析表明，与传统烧结的YSZ相比，快速烧结不影响YSZ的硬度。结果表明，快速烧结适用于制备牙科修复用YSZ。
