摘要牙科全瓷材料具有美学性能优越、生物相容性好等优点,因此在口腔美学修复领域中的应用日趋广泛;然而牙科全瓷材料具有强度离散性大等劣势,近年来全瓷材料强度的研究越来越受到国内外学者的关注.系统综述了常见的不同商品名的牙科全瓷材料强度的影响因素(如材料成分、显微结构、制作工艺等);总结了全瓷材料强度的增强途径(包括改善材料成分、改进加工和表面处理技术等);针对目前全瓷材料强度测试方法参差不齐的现状,总结并评价了各类强度测试方法的优劣.旨在为牙科全瓷材料的临床应用研究提供参考.

abstractsAll-ceramic dental materials could meet the requirements for extraordinary aesthetics and ex-cellent biocompatibility in vivo, thus are widely utilized in prosthetic dentistry. Since the all-ceramic materials have low strength reliability and the disadvantage is recently concerned, the relevant research has been the focus in the area. The purpose of this artical is to review the relevant studies and with focus on the factors that influence the strength including material component, microstructures and manufacture process, as well as strength improv-ing approaches such as ingredient alteration, fabrication optimization and surface treatment. As for various strength testing methods, all the existing test methods are compared and evaluated.