CEREC陶瓷修复体的临床应用

在临床修复中，传统的瓷嵌体等修复体的制作，至少需要二次就诊时间。随着光学扫描方法和计算机辅助制作嵌体技术的应用，省去了目前操作的印模、灌模、蜡型等技术。CEREC系统运用光学印模方法以及CAD-CAM技术，将一预成陶瓷块铣磨成修复体，使牙科医生能在牙体预备后即制作一个色泽自然的陶瓷修复体，并即时粘固于预备牙上，这不仅提高了工作效率，更重要的是提高了修复体的质量。该系统不仅可以制作嵌体和高嵌体，而且还可制作各种贴面。本文的目的是介绍和描述CEREC系统制作修复体的方法步骤，并就临床应用中的有关问题加以探讨。

Clinical experience of CEREC ceramic restorations

At least two visits are required to fit conventionally fabricated porcelain and composite resin inlays. The optical scanning methods and computer-aided inlay fabrication techniques have been used in attempts to eliminate the currently practiced impression, die, waxup technique. Using optical scanning and CAD ?CAM technique, the Cerec system enable the restoration. to be milled from a premanufactured ceramic block. The excellent color ceramic restorations can be fabricated and placed immediately by dentists after the tooth be prepared. This not only raises working efficiency , but it is more important to improve the quality of restoration. Cerce-milled restorations are suited to inlays and onlays. Veneer laminates are also fabricated by the same system. The purpose of this paper is to introduce and describe the step by step fabrication of a ceramic restoration using the Cerec system,and explore certain problems about clinical application.