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[目的]对铸造桩核冠修复后牙残根残冠的临床疗效进行评价。[方法]99例(110颗)后牙残根残冠患者随机分为观察组和对照组,两组分别采用镍铬合金铸造金属桩核和成品螺纹根管钉桩核对后牙残根残冠制作桩核冠进行修复治疗。[结果]经修复治疗并随访观察3年,观察组和对照组的修复成功率分别为94.6%和77.8%,二者相比差异具有统计学意义(P﹤0.05)。[结论]铸造金属桩核冠修复法对后牙残根残冠具有良好的修复效果。
[Objective] To evaluate the clinical efficacy of cast post-core crown restoration of residual tooth crown. [Method] Ninety-nine patients (110 teeth) with residual crown of posterior teeth were randomly divided into observation group and control group. The two groups were respectively treated with nickel-chromium alloy cast metal post and finished screwed root canal nail post to check the residual teeth Make post crown for repair treatment. [Results] After 3 years of repair and follow-up, the successful rates of repair in the observation group and the control group were 94.6% and 77.8%, respectively. The difference between the two groups was statistically significant (P <0.05). [Conclusion] Cast-in-metal post and core crown repair method has a good effect on the treatment of posterior tooth residual root and crown.