后牙锤造固定桥固位体合面部分开窗的临床应用常州市口腔医院陈旭东单个后牙缺失的完全固定桥修复体，由于其坚固、稳定、方便、体积小等优点而被临床长期采用。常规的锤造冠固定桥基牙面制备，需均匀磨削０．３～０．５ｍｍ。这对活髓牙来说，特别是咬接触过紧或面磨耗症... The posterior teeth hammer fixed bridge retainer occlusal part of the window of the clinical application of Changzhou Dental Hospital Chen Xudong missing a single posterior complete fixed bridge prosthesis, due to its solid, stable, convenient, small size and other clinical long-term use . Conventional hammer crown fixed abutment surface preparation, to be uniform grinding 0.3 ~ 0.5mm. This is vital teeth, especially bite contact or wear or face wear ...