中文摘要：

目的评价年轻恒牙完全脱位再植后的愈合方式，对不同发育阶段年轻恒牙再植术后的疗效进行总结，为更好保留患牙的美观与功能提供参考。方法回顾分析30颗完全脱位年轻恒前牙，根据国际牙外伤协会治疗指南进行治疗。评价再植后年轻恒牙牙周组织愈合方式，分为牙周膜愈合、表面吸收愈合、替代性吸收（骨粘连）、炎性吸收。结果30颗完全脱位的年轻恒牙再植后，其中7颗为牙周膜愈合，占23.3%；1颗为表面吸收愈合，占3.3％；13颗为替代性吸收，占43.3%；9颗为炎性吸收，占30.0％。结论年轻恒牙发生完全脱位，再植后愈合方式受多种因素影响。当出现不良的愈合方式限制颌面部发育时，一定要及时干预，减少患者生理和心理的创伤。

英文摘要：

Objective To assess clinical effect of replantation in avulsed immature permanent teeth. Methods 30 avulsed permanent teeth with immature apex treated following the International Association of Dental Traumatology treatment guidelines from July 2008 to June 2009 were analyzed in the retrospective study. The healing outcomes were classified into 4 categories:normal periodontal ligament healing, surface resorption, ankylosis and inflammatory resorption. Results The rate of normal periodontal ligament healing, surface resorption, ankylosis and inflammatory resorption were 23.3%, 3.3%, 43.3%, and 30.0% respectively. Conclusion Traumatic injuries that result in ankylosis and inflammatory resorption of the permanent teeth in growing child leave the practitioners with many considerations to make the most appropriate treatment plan.