3种方法修复前磨牙楔状缺损的疗效比较

Abstract

Abstract: Objective　To compare the clinical effects of fiber post, fiber-post zirconia + all-ceramic crown and direct resin filling restoration on endodontically treated premolars with severe wedge-shaped defects. Methods　Ninety-seven patients with 135 endodontically treated premolars with severe wedge-shaped defects were randomly divided into three groups. After repairing them with the three methods, the success rate and the performance satisfaction of the different groups were observed in 24 months. Results　At the final follow-up, the success rate of the group which was restored by fiber posts was 95.6%, the success rate and performance satisfaction of the group by fiber-post zirconia + all-ceramic crown was 93.3% and the success rate and performance satisfaction of the third group by composite resin was 82.2%. There was no statistically significant difference in the success rate between the fiber post group and the fiber-post zirconia + all-ceramic crown group (P>0.05), while the statistical difference of the success rate between the fiber post group and the composite resin group was significant (P<0.05). The satisfaction rate of fiber-post zirconia + all-ceramic crown group was the highest. Conclusions　As far as the observation is concerned, the clinical effects of the fiber post and the fiber-post zirconia + all-ceramic crown group are basically the same, and fiber post is a relatively reliable method to restore endodontically treated premolars with severe wedge-shaped defects.

Key words: fiber post, zirconia all-ceramic crown, composite resin, wedge-shaped defects

CLC Number:

R781.05

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Comparison of three methods for the repair of premolars with wedge-shaped defects

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