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目的比较纤维桩和金属桩的临床效果。方法选取2008年3—6月河南省人民医院口腔科进行桩核冠修复的患者63例(共70颗患牙),随机将70颗患牙分为2组,每组35颗。试验组采用纤维桩+树脂核联合烤瓷冠修复;对照组采用铸造钴铬金属桩核联合烤瓷冠修复。修复后随访观察2年,并评价临床效果。结果修复1年后,试验组1例患牙在去除临时冠时纤维桩核脱落,经重新黏结后未发生再脱位,成功率97.1%;对照组1例牙龈缘充血,1例根尖周炎,成功率94.2%,组间差异无统计学意义(χ2=0.348,P=0.555)。修复2年后,试验组成功34颗,成功率97.1%;对照组成功31颗,失败4颗,其中根折、根尖周炎、桩核脱落、牙龈缘充血各1颗,成功率88.6%,组间差异无统计学意义(χ2=1.938,P=0.164)。结论纤维桩可替代金属桩,常规应用于临床。
Objective To compare the clinical effects of fiber posts and metal posts. Methods Sixty-three patients (70 teeth total) with post-core crown restoration in Department of Stomatology, Henan Provincial People’s Hospital from March to June 2008 were randomly divided into two groups of 35 teeth. The experimental group was repaired by fiber post + resin core combined with porcelain crowns; the control group was repaired by the cast cobalt-chromium metal post and core combined with porcelain crowns. Follow up for 2 years after repair, and evaluate the clinical effect. Results After 1 year of repair, one case of test group had the detachment of fiber postsickness when the temporary crown was removed, and no further dislocation occurred after re-bonding. The success rate was 97.1%. In the control group, one case had gingival margin hyperemia and 1 case of apical periodontitis , The success rate of 94.2%, no significant difference between groups (χ2 = 0.348, P = 0.555). After 2 years of repair, the experimental group succeeded in 34 cases, with a success rate of 97.1%. The control group succeeded in 31 cases and failed in 4 cases. The root fracture, apical periodontitis, exfoliated post and gingival margin were each one with a success rate of 88.6% There was no significant difference between groups (χ2 = 1.938, P = 0.164). Conclusion Fiber posts can replace metal posts and are routinely used in clinical practice.