Objective To investigate the clinical effect of one-time root canal therapy and reattachment of permanent incisors with crown fracture.
目的：观察恒切牙外伤冠折后行一次性根管治疗与断冠再接术的临床效果。
Conclusion One appointment root canal therapy is a safe, time saving, and economic RCT method.
结论一次性根管治疗术是节省时间行之有效的治疗方法。
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