两种粘结剂用于活髓前牙缺损修复的临床效果

Clinical study of self-etching and total-etching systems for esthetic restoration of anterior teeth with vital pulp

目的比较两种粘结剂Adper Single Bond 2和XenoⅢ用于活髓前牙牙体缺损复合树脂充填修复的术后敏感情况及充填修复效果。方法 124颗患牙随机分为两组,全酸蚀组使用酸蚀剂、Adper Single Bond 2行复合树脂充填,自酸蚀组使用XenoⅢ行复合树脂充填,术后1、7、30 d复诊,评价术后敏感发生率;1年后复诊,评价充填修复效果。结果术后1 d,自酸蚀组敏感率明显低于全酸蚀组,差异有统计学意义(χ2=6.105,P=0.047);术后7 d(χ2=2.667,P=0.264)、30 d(χ2=1.177,P=0.555),两组敏感率差异无统计学意义。1年后自酸蚀组充填修复的成功率明显高于全酸蚀组,差异有统计学意义(χ2=4.459,P=0.035)。结论自酸蚀粘结剂XenoⅢ术后敏感度低;术后1年,XenoⅢ的粘结充填修复效果优于Adper Single Bond 2。

Objective To evaluate the postoperative sensitivity and therapeutic effect of a self-etching system and a total-etching system in anterior teeth restorations.Methods One hundred and twenty-four anterior teeth with vital pulp that needed to be restored were divided into two groups randomly.Adper Single Bond 2 and Xeno Ⅲ were applied respectively in each group.After restoration,the sensitivity of teeth was evaluated at 1 d,7 d,30 d,and the ratios of success were investigated 1 year later.Results The ratios of postoperative sensitivity of Xeno Ⅲ group was lower than that of Adper Single Bond 2 group at 1 day,however,no significant differences were seen at 7 days,30 days.The successful effective rate of Xeno Ⅲ group was higher than that of Adper Single Bond 2 group statistically.Conclusion Using self-etching primer is an effective way to reduce postoperative sensitivity,and through the long term observation,Xeno Ⅲ has better bonding effect than Adper Single Bond 2.