从美学角度看,陶瓷全冠优于塑料和金属两类全冠。全瓷冠被运用在牙科临床修复90多年的历史表明,它的进展必然包括新型陶瓷冠材料的开发和瓷冠制作工艺的配套。两个方面紧密相关,这也是现代应用材料研制的一个重要特点。本文将按序回顾几种全瓷冠的发展, From the aesthetic point of view, the ceramic crown is superior to the two types of plastic and metal crown. The history of more than 90 years of clinical application of all-ceramic crowns in clinical dentistry shows that its progress must include the development of new ceramic crown materials and the matching of the porcelain crown making process. Two aspects are closely related, which is an important feature of the modern application of materials development. This article will review the development of several all-ceramic crowns in order,