铸瓷冠配合纤维桩在前牙残冠残根保存修复中的应用

目的探索应用铸瓷冠配合纤维桩修复前牙残冠残根的临床效果。方法将60例95颗因龋齿和外伤所致的上颌前牙残冠残根随机分为两组,各30例,试验组49颗患牙采用铸瓷冠配合纤维桩进行修复,对照组46颗患牙采用金属烤瓷冠配合铸造金属桩进行修复。修复后随访1年,对修复体的固位、外形完整度、颜色匹配、牙龈状态、边缘密合度各项指标进行综合评价。结果试验组修复后1年,修复成功47件,成功率为95.9%。对照组修复成功33件,成功率为71.7%。两组成功率比较差异有统计学意义(χ2=25.71,P<0.01)。结论铸瓷冠配合纤维桩修复残根残冠效果良好,值得推广使用。

The Application of Porcelain Crown Combining Fiber Root in Restoration and Preservation to the Residual Crown and Root of Anterior Teeth

Objective To investigate the clinical effect of the application of the cast porcelain crowns combining with fiber root canal posts in the restoration and preservation to the residual roots and crowns of anterior teeth. Methods 95 patients with anterior teeth of residual roots ard crowns which caused by dental caries and surgical trauma were randomly divided into two groups ,30 patients in every group. The test group with 49 defect teeth, used porcelain crowns cooperating with fiber root canal posts in restoration; the control group with 46 defect teeth used metal-porcelain crown combining with the cast metal posts in restoration. Follow up 1 year after reparation, for the restoration of retention, integrity shape, color matching, gums, and the edge of adaptation to carry out comprehensive evaluation of the indicators. Results 1 year after the restoration, the test group has 47 successful restoration, the achievement ratio is 9：5.9%. The control group has 33 restoration, the achievement ratio is 71.7%. The difference of achievement ratio between two groups is staffstically significant （ X^2= 25.71, P 〈 0.01 ）. Conclusion The application of the cast porcelain crowns cooperating with fiber root canal posts in the restoration and preservation of the residual roots and crowns of anterior teeth has good effect and has high value to application.