改良树脂嵌体在楔状缺损中的治疗体会

Evaluation of modified resin inlays in restoring wedge-shaped defects

目的:评价改良嵌体在修复楔状缺损中的临床应用效果。方法:将35例患者(70颗)双侧对称性楔状缺损的牙齿分为两组,一侧缺损使用改良树脂嵌体进行修复,另一侧则用常规树脂直接充填修复。修复3年后复查,参考改良USPHS/Ryge评价系统,对两组患牙修复效果的评价结果进行比较。结果:共复查31例患者62颗患牙,改良树脂嵌体组在修复体缺损情况、边缘密合性和边缘着色情况方面均优于常规充填组(P<0.05),但在继发龋方面两组相差不大(P>0.05)。结论:在选择好适应症的前提下,改良树脂嵌体在楔状缺损的临床修复效果良好。

Objective： To evaluate the clinical effect of modified inlays in restoring wedge-shaped defects. Methods： 70 teeth with bilateral symmetric wedge-shaped defects from 35 patients were randomly divided into 2 groups. The experimental group was treated by modified resin inlays, while the control group was treated by regular direct filling with resin. 3 years follow-up, restorations were evaluated and compared using modified Ryge/USPHS criteria. Results： 31 patients were available for recall and 62 restorations were evaluated. Restorations in the experimental group were superior to the control group in restoration defects, marginal discoloration and marginal integrity（P 〈0.05）, while no significant difference was observed in secondary caries（P 〉0.05）.Conclusion： Under the premise of choosing the indications, modified resin inlays have better clinical effect in restoring wedge-shaped defects.