釉质内肩台预备加直接树脂充填修复前牙切端切角缺损的临床效果研究

Clinical effect analysis of anterior incisional margin or angle defects repaired with resin on enamel shoulder

目的观察釉质内肩台预备加直接树脂充填修复前牙切端切角缺损的临床疗效。方法选取2017年9月-2018年4月就诊于潍坊市人民医院口腔医院行前牙切端切角缺损修复患者60例,共98颗患牙,随机分为试验组与对照组。试验组49颗患牙制备釉质内肩台后复合树脂充填,对照组49颗制备釉质短斜面后复合树脂修复,在修复后3、6、12个月对树脂修复体进行评价。结果两组患牙修复后3个月的临床疗效比较无统计学差异(P>0.05);修复后6个月及1年,对照组的修复体脱落率高于试验组,差异有统计学意义(P<0.05)。结论釉质内肩台预备加直接树脂充填修复前牙切端切角缺损的方法术后脱落率低且并发症少。

Objective To observe the clinical effect of anterior incisional margin or angle defects repaired with resin on enamel shoulder. Methods A total of anterior teeth with different degrees were selected from 2017/9 to 2018/4. Ninety-eight anterior teeth in 60 patients were randomly divided into 2 groups, 49 teeth in each group. In the experimental group, the teeth were repaired by resin after preparation of enamel shoulder. And the control group was restored by resin after preparation of enamel short bevel. The restoration rates of two groups were observed and compared after 3-month, 6-month and 1-year follow-up. Results After 3 months, the difference in the repair success rate between the experiment group and the control group had no statistical significance(P>0.05). The repair expulsion rates in the control group were obviously higher than those in the experiment group after 6-month and 1-year follow-up, and the differences had statistical significance(P<0.05). Conclusion The clinical efficacy of restoring anterior incisional margin or angle defects by resin after preparation of enamel shoulder can lower tooth injury and postoperative complications.