为了尽可能保留折裂的磨牙并恢复其功能，采用冠外结扎、冠内固定的方法，对３８颗折裂的磨牙进行铸造全冠修复，经２年以上的随访观察，效果满意．本文提示：随着材料与技术的发展，以前认为需要拔除的折裂牙，经过完善的根管及牙周治疗并以全冠修复，绝大多数是可以保存的． In order to preserve the fractured molars as much as possible and restore its function, the maxillary ligation and the crown were used to repair the 38 fractured molars. After 2 years of follow-up, the results were satisfactory. This article suggests: With the development of materials and technology, previously considered the need to remove the fracture of the tooth, after a sound root canal and periodontal treatment and full crown repair, the vast majority can be saved.