目的观察纤维桩在外伤性恒前牙冠折断牙一次性自体断冠再接修复中的临床应用效果。方法对外伤引起冠折的折断部分保存完整的34例39颗恒前牙,采用纤维桩及流体双固化复合树脂进行一次性根管治疗后自体牙断冠再接,并进行3年的追踪观察。结果使用该方法再接断牙3年的保存率为97.4%。结论应用纤维桩和流体双固化复合树脂一次性再接修复前牙冠折牙是一种简便易行、效果明显的过渡性治疗方法,尤其是青少年恒前牙。 Objective To observe the clinical application of fiber post in the treatment of traumatic anterior crown fractures with one-off self-repaired crown. Methods Forty-nine cases of permanent anterior teeth were preserved in the fracture part of the traumatic fracture. One-off root canals were reconnected with the fiber post and the fluid double-cure composite resin after 3-year follow-up . Results Using this method, the 3-year survival rate was 97.4%. Conclusions The application of fiber post and fluid dual-cure composite resin to one-time splicing of the anterior tooth crowns is an easy and effective transitional treatment method, especially for adolescent permanent teeth.