在国内外已经广泛应用预成冠修复牙体严重缺损，牙冠折断或残冠，解决了以往临床上因牙体严重缺损或牙冠折断等必须拔除牙齿的保存和功能恢复问题。预成冠操作方法方便，显效快，功能恢复好，外观漂亮，是牙体修复的好方法。我科自１９９２年以来，应用预成冠，收到了良好... At home and abroad have been widely used preformed crown repair of severe dental defects, crown or broken crown, to solve the previous clinically due to severe dental defects or crown fracture and other teeth must be preserved and recovery function recovery. Preformed crown operation method is convenient, markedly effective, functional recovery is good, the appearance of beautiful, is a good method of dental restoration. Our department since 1992, pre-applied crown, received a good ...