Koutayas Spiridon Oumvertos, Vagkopoulou Thaleia, Pelekanos Stavros, Koidis Petros, Strub Jörg Rudolf
Department of Prosthodontics, School of Dentistry, Albert-Ludwigs University, Freiburg, Germany.
Eur J Esthet Dent. 2009 Winter;4(4):348-80.
An ideal all-ceramic restoration that conforms well and demonstrates enhanced biocompatibility, strength, fit, and esthetics has always been desirable in clinical dentistry. However, the inherent brittleness, low flexural strength, and fracture toughness of conventional glass and alumina ceramics have been the main obstacles for extensive use. The recent introduction of zirconia-based ceramics as a restorative dental material has generated considerable interest in the dental community, which has been expressed with extensive industrial, clinical, and research activity. Contemporary zirconia powder technology contributes to the fabrication of new biocompatible all-ceramic restorations with improved physical properties for a wide range of promising clinical applications. Especially with the development of computer-aided design (CAD)/computer-aided manufacturing (CAM) systems, high-strength zirconia frameworks can be viable for the fabrication of full and partial coverage crowns, fixed partial dentures, veneers, posts and/or cores, primary double crowns, implant abutments, and implants. Data from laboratory and clinical studies are promising regarding their performance and survival. However, clinical data are considered insufficient and the identified premature complications should guide future research. In addition, different zirconia-based dental auxiliary components (i.e., cutting burs and surgical drills, extra-coronal attachments and orthodontic brackets) can also be technologically feasible. This review aims to present and discuss zirconia manufacturing methods and their potential for successful clinical application in dentistry.
在临床牙科领域，一直以来都渴望有一种理想的全瓷修复体，它能很好地贴合牙齿，且具有增强的生物相容性、强度、贴合度和美观性。然而，传统玻璃陶瓷和氧化铝陶瓷固有的脆性、低抗弯强度和断裂韧性一直是其广泛应用的主要障碍。最近，氧化锆基陶瓷作为一种牙科修复材料的引入，在牙科领域引起了相当大的关注，这体现在广泛的工业、临床和研究活动中。当代氧化锆粉末技术有助于制造新型生物相容性全瓷修复体，这些修复体具有改善的物理性能，适用于广泛的有前景的临床应用。特别是随着计算机辅助设计（CAD）/计算机辅助制造（CAM）系统的发展，高强度氧化锆框架可用于制作全冠和部分冠、固定局部义齿、贴面、桩核、原双冠、种植体基台和种植体。来自实验室和临床研究的数据表明它们的性能和留存率很有前景。然而，临床数据被认为是不足的，已发现的过早出现的并发症应指导未来的研究。此外，不同的氧化锆基牙科辅助部件（即切割车针和外科钻头、冠外附着体和正畸托槽）在技术上也是可行的。这篇综述旨在介绍和讨论氧化锆的制造方法及其在牙科成功临床应用的潜力。
