纤维桩和铸造桩核在前牙残根再次修复中的疗效比较

Clinical evaluation of glass fiber post and metal cast post core in the re-restoration for residual root of anterior tooth

目的:比较玻璃纤维桩与铸造金属桩核在前牙残根再次桩核冠修复的临床疗效。方法:将临床50例患者60个已做过桩核冠修复失败但仍可以保留的前牙残根进行再次修复,其中32个用玻璃纤维桩,28个用镍铬合金金属桩核,完成后行烤瓷熔附金属全冠修复。分别于修复后第1、2、3年复诊,观察临床效果。结果:玻璃纤维桩组出现1个全冠脱落,未见桩折和牙根折断,修复成功率96.9%。铸造金属桩核组出现6个桩核冠脱落,3个牙根折断,未见桩折,成功率67.9%。两组成功率差异具有统计学意义。结论:玻璃纤维桩更适合作为前牙残根再次桩核冠修复材料。

Objective To compare the clinical effect of glass fiber post and metal cast post core in the re-restoration for residual root of anterior tooth.Methods Sixty anterior residual roots which have failed in post-core crown restoration but could be restored were included in this clinical observation.Tirty two residual roots were with glass fiber post cores,and the other 28 roots were with Ni-Cr alloy cast post cores.All teeth were restored with porcelain fused to metal crowns.The cases were rechecked one year,two years and three years later to observe the restorations.Results At 3 years follow up,the success rate of the glass fiber post group was 96.9%,with only 1 full crown falling off.The success rate of the metal cast post core group was 67.9%,with 6 post crowns falling off and 3 roots fracture.The success rates between the two groups were statistically significant.Conclusion Glass fiber post is more suitable as rerestoration material for residual root of anterior tooth.