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目的对比石英纤维桩和前牙螺纹根管钉在年轻恒前牙冠折修复中的疗效。方法选择35例年轻恒前牙冠折露髓的患者共40颗患牙,对根管发育完全的30颗患牙进行常规根管治疗,根管未发育完全的10颗患牙行根尖诱导术待牙根形成后行完善的根管治疗。将其分为实验组和对照组,实验组(22颗)使用石英纤维桩修复牙冠,对照组(18颗)使用前牙螺纹根管钉修复牙冠,观察两年。结果实验组22颗患牙两年内1颗由于桩折致修复失败,成功率95.5%。对照组18颗患牙两年内,2颗根折,1颗桩折,2颗桩脱落,成功率72.2%。两者之间差异有统计学意义。结论石英纤维桩在年轻恒前牙冠折修复中疗效优于前牙螺纹根管钉,值得推广。
Objective To compare the efficacy of fused silica fiber post and screw thread root canal nail in the treatment of young permanent crown fractures. Methods A total of 40 teeth were selected from 35 young patients with uncrossed coronal demyelination. Conventional root canal therapy was performed on 30 teeth with complete root canal development. Root apical induction was performed on 10 teeth with incomplete root canal. Root canal formation after surgery to improve the root canal treatment. They were divided into experimental group and control group. In the experimental group (22), the crown was repaired by the quartz fiber post and the control group (18). The crown was repaired by the pre-threaded root canal nail for two years. Results In the experimental group, 22 teeth with one tooth failed to repair due to piles within two years, the success rate was 95.5%. Control group of 18 teeth within two years, 2 root fracture, a pile, two pegs off, the success rate of 72.2%. The difference between the two was statistically significant. Conclusion The effect of the quartz fiber post in the treatment of young permanent crown crowns is better than that of the anterior root screw, which is worth to be popularized.