【摘要】 目的　探讨外伤性脱位前牙临床治疗的效果。方法　对 71颗不同类型的脱位牙治疗方法和治疗结果进行综合分析。结果　脱位牙的根管治疗率为 70 .4% ,其中部分脱位牙 68.9% ,完全脱位牙 76.2 % ;脱位牙的牙根吸收率为 45 .1% ,根管治疗前 3 9.4% ,根管治疗后 5 .7%。结论　根管治疗是脱位牙治疗的重要手段 ,早期根管治疗可预防或减少脱位牙牙根的吸收。更多还原

【Abstract】 Objective To investigate the rationale of clinical treatment of the avulsed anterior teeth. Methods Clinical outcomes and different treatments of 71 teeth which belong to different kinds of dislocaton were analysed comparatively.Results The total treatment rate of the dislocated teeth by root canal therapy was 70.4%,68.9% of the partial dislocated teeth and 76.2% of the complete dislocated teeth were treated with root canal therapy respectively.45.1% of roots of the dislocated teeth was demonstrated absorbed and the root absorption of the dislocated teeth was 39.4% before root canal therapy and 5.7% after root canal therapy.Conclusion Root canal therapy is an important method to treat the dislocated teeth,and early root canal therapy can prevent or reduce root absorption of the dislocated teeth.更多还原