自酸蚀黏结剂复合树脂修复后牙牙体缺损的临床研究

目的评价自酸蚀黏接剂复合树脂修复后牙缺损的临床效果。方法将344颗患牙随机分为两组,实验组171颗,采用自酸蚀黏接剂Clearfil SE Bond处理后,Z 250通用复合树脂充填;对照组173颗,全酸蚀黏结剂Single Bond处理后,Z250通用复合树脂充填。治疗后1周、3个月、6个月复查。结果治疗后半年定期观察两组修复体在色彩协调性、修复体表面、边缘密合性、边缘着色、牙龈炎性反应及继发龋方面差异均无统计学意义,治疗后1周的牙髓反应情况差异有统计学意义(P<0.05)。结论用自酸蚀黏接系统的复合树脂修复后牙可获得非常满意的临床效果,同时具有操作步骤简便、术后敏感发生率低、化学固化相对容易控制等优点。

A clinical study of self-etching primer and composite resin in repair of posterior dental defects

Objective To evaluate the clinical effect of self-etching primer and composite resin in repair of posterior restorations.Methods 344 molars were randomly divided into two groups.171 molars in the experimental group were treated with Clearifil self-etching bond and Z250 to repair dental defects while 173 molars in the control group were treated with Single Bond and Z250.344 molars were followed up for one week,three months and six months respectively to check post-operation sensitivity,color match,anatomic form,marginal adaptation and secondary caries according to Rege＇s criteria.Result One case had temporary sensitivity after one week in the experimental group while seven cases presented post-operative sensitivity in the control group,with statistically significant difference（P0.05）.There was no statistically significant difference between the two groups in color match,anatomic form,marginal adaptation and secondary caries（P0.05）.Conclusion Self-etching bond and composite resin for posterior restorations can achieve satisfactory clinical results,able to simplify the operation,lower the occurrence of postoperative sensitivity and control chemical curing more easily.