[摘要]目的：探究牙髓血运重建术与根管治疗术治疗年轻恒牙外伤后继发性牙髓坏死的疗效。方法：选择2018年7月-2019年7月诊断为年轻恒牙外伤后继发性牙髓坏死的患者106例，随机分为观察组和对照组，观察组(53例)实施牙髓血运重建术(Regenerative endodontic procedures，REPs)，对照组(53例)实施传统根管治疗术。并在治疗24个月后随访治疗效果，根据临床症状和X线片进行评价，分析两组患者治疗后的治愈率。结果：治疗后，观察组总有效率(96.23%)显著高于对照组(75.47%)(P<0.05)；治疗后，两组患者的牙冠根比、牙根管壁厚度均明显增加(P<0.05)，观察组治疗后牙冠根比、牙根管壁厚度显著高于对照组(P<0.05)；治疗后患者的咬合力也显著增强，咬合时间显著降低(P<0.05)，观察组治疗后咬合能力显著优于对照组(P<0.05)。结论：REPs治疗年轻恒牙外伤后继发性牙髓坏死的疗效显著优于常规根管治疗，且增强了牙根的坚固和稳定程度，具有较高的安全性。

    [关键词]牙髓坏死；牙髓血运重建术；根管治疗；美学效果

    [中图分类号]R781.3 [文献标志码]A [文章编号]1008-6455(2024)10-0150-04

    Observation on the Curative Effect of Pulp Revascularization in the Treatment of Secondary Pulp Necrosis Caused by Trauma of Young Permanent Teeth

    WANG Xiaoying， WANG Bianhong， WANG Yanhua

    ( Department of Stomatology， Beijing Friendship Hospital Affiliated to Capital Medical University， Beijing 100050， China )

    Abstract： Objective The aim of this study was to investigate the effects of regenerative endodontic procedures (REPs) and root canal therapy in the treatment of pulp necrosis secondary to traumatic injuries of immature permanent teeth. Methods A total of 106 patients with pulp necrosis secondary to traumatic injuries of immature permanent teeth were admitted to the hospital from July 2018 to July 2019. They were randomly assigned to an observation group (53 patients) and a control group (53 patients) ......