纤维桩与金属桩行桩核冠修复的临床疗效观察

目的比较纤维桩与金属桩在桩核冠修复治疗中的疗效。方法选择2009年3月至2010年3月在郑州市第一人民医院口腔科行桩核冠修复的患者105例(130颗患牙),随机分为两组:试验组55例(65颗患牙)采用纤维桩+树脂核联合烤瓷冠修复,对照组50例(65颗患牙)采用铸造金属桩核联合烤瓷冠修复。修复后随访观察2年,比较两组患者的临床疗效。结果修复后1年,试验组1例纤维桩冠脱落,成功率为98.5%;对照组2例牙龈缘炎症、1例根管壁劈裂导致桩核冠松动,成功率为95.4%,两组比较差异无统计学意义(χ2=0.256,P>0.05!。修复后2年,试验组3例失败,均为纤维桩核松动脱落,成功率为95.4%;对照组7例失败,牙龈缘炎症3例、根折3例、桩核脱落1例,成功率为89.2%,两组间比较差异无统计学意义(χ2=1.73,P>0.05!。结论纤维桩可代替金属桩行桩核冠修复,临床上可根据患者情况,选择不同的桩核冠修复方法。

The Clinical Effect Observation of Fiber Post and Metal Post on Post-Crown Restoration

Objective To compare the clinical effects of fiber post-retained and metal post-retained in crown restorations.Methods One hundred and five patients(130 teeth) admitted to Zhengzhou First People's Hospital from March 2009 to March 2010 were included in this study.130 endodontally treated teeth were divided into two groups(trial group of 55 patients,control group of 50 patients) randomly and each group consisted of 65 teeth.The trial group teeth were restored with fiber post-resin core and porcelain crown and the control group teeth were treated with cast metal post-core and porcelain crown.The teeth were clinically examined regularly for two years and then compared.Results One fiber post dislocated 1 year after restoration and the success rate was 98.5%.Two gingival inflammation cases and one root fracture case occurred among the metal post group in 1 year after restoration,and the success rate was 95.4%.There was no statistically significant difference between the two groups(χ2 = 0.256,P > 0.05).Two years after restoration,three teeth of fiber post group failed,all because of the post dislocation and the success rate was 95.4%.Seven teeth including three gingival inflammation,three root fracture and one post dislocation of metal post group failed,and the success rate was 89.2%.There was no statistically significant difference between the two groups(χ2 = 1.73,P > 0.05).Conclusion Fiber post-retained restoration can be used clinically instead of metal post-restained restoration.These restoration methods can be chosen based on individual conditions in clinical application.