Objective:To compare the clinical effect of glass fiber post and nickel-chromium casting post in the repair of the molar residual crowns and roots.Method:One hundred and sixteen patients with 124 teeth from January 2007 to January 2010 in Feixian of Shandong Province People’s hospital were randomly selected and divided into the treatment group and the control group,62 teeth in each group.The treatment group was given fiber glass posts and the control group was given nickel-chromium casting post.The two groups were repaired by porcelain crowns.With two years following-up,the clinical effect were observed.Result:For 62 teeth of the treatment group,58 teeth were successful,4 teeth failed,the success rate was 93.54%,62 teeth of the control group,57 teeth were successful,5 teeth failed,the success rate was 91.94%.The clinical effect of two groups had no statistically significant difference(P>0.05).Conclusion:For molar defects not serious patients,select glass fiber post core crown restoration or metal cast post core crown restoration,suggest the preferred glass fiber post,for defect serious merger poor root of tooth,suggest use metal casting pile.%目的：观察玻璃纤维桩加树脂核和铸造镍铬金属桩核修复磨牙的临床效果。方法：研究对象为2007年1月-2010年1月在山东省费县人民医院口腔科行磨牙桩核冠修复的116例患者的124颗患牙，随机分为治疗组62颗和对照组62颗。治疗组采用玻璃纤维桩加树脂核，对照组采用铸造镍铬金属桩制作桩核，然后均用烤瓷全冠进行修复，随访2年，观察比较两组临床效果。结果：治疗组成功58颗，失败4颗，成功率93.54%；对照组成功57颗，失败5颗，成功率91.94%。两组修复成功率差异无统计学意义（P>0.05）。结论：对于磨牙缺损不严重的患者，选用玻璃纤维桩核冠修复或金属铸造桩核冠修复均可，建议首选玻璃纤维桩，对于缺损严重合并牙根条件差的患牙，建议选用金属铸造桩。
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