选择行桩核修复后再行烤瓷冠修复残根残冠103例，患者充分知情同意后随机分为两组，其中51例用牙用根管钉光固化树脂进行桩核修复，52例行牙行玻璃纤维桩核修复，经过6～12个月的随访观察，牙用根管钉桩核组出现了2例冠根折断，4例脱落，成功率为88．24％（45／51），纤维桩核组出现了1例冠根折，1例脱落，成功率为96．15％（50／52）。纤维桩核烤瓷全冠修复是目前修复残根残冠的最佳选择，但牙用根管钉光固化树脂核经济、简单，易操作，适合基层使用。%From January,2011 to December,2013,103 cases were selected from patients whose residual roots and crowns were restored by porcelain fusedto metal crowns after post core crown restorations.Patients were fully in-formed and randomly divided into two groups,including 51 cases receiving the post core restoration with dental root canal nail,52 cases being repaired with glass fiber post core restoration.After 6 ~12 months of follow-up observa-tion,in the group having received post core restoration with the dental root canal nail,there were 2 cases of crown root fracture,4 cases of falling off,the success rate was 88.24% (45 /51).In the group of fiber post and core res-toration,there was 1 case of crown root fracture,1 case of falling off;the success rate was 96.15% (50 /52).The restoration of fiber post core and porcelain fused to metal crown is the best choice of restoration of residual crown and root,but the root canal nail of teeth with light cured resin core is more economical,simple,easy to operate, and suitable for basic use.
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