自酸蚀粘结剂在楔状缺损修复中的临床评价

Clinical evaluation of self-etching bonding system in treatment of wedge-shaped defect

目的：比较自酸蚀粘结剂和全酸蚀粘结剂在楔状缺损粘结修复中的效果。方法：25例楔状缺损病例,38对患牙,采用自身对照方法左侧使用自酸蚀粘结剂XenoⅢ,右侧使用单瓶粘结剂Prime&Bond NT,均应用复合体Dyract修复。1年后随访,根据改良的USPHS/Ryge临床评价标准对修复体进行盲法评价。结果：1年后随访率达95%。XenoⅢ组36个修复体中有33个修复体保存,保存率92%。Prime&BondNT组中有32个修复体保存,保存率89%。两组修复体的保存率和脱落率经统计学处理没有显著性差异。结论：自酸蚀粘结剂在楔状缺损粘结修复中具有较好的临床效果。

Objective： To evaluate the clinical performance of a self-etching bonding system and a total etching system restored in pairs in the same patient after 1 year according to the modified USPHS criteria . Method： Thirty pairs of restorations were placed in 25 patients. Xeno Ⅲ was used in the left side, Prime＆Bond NT was in the right side. The cavity was restored with compomer Dyract. Direct clinical evaluations of the restorations were performed at baseline and after one year. Result： There was no significant difference between the two systems with respect to any of the criteria evaluated. The retention rate of Xeno Ⅲ was 92 %, Prime ＆ Bond NT was 89 %. Conclusion： The one-year clinical performance of the two bonding system was satisfactory and had no significantly difference for any of the parameters evaluated in this prospective longitudinal study.