Int J Periodontics Restorative Dent. 2023 Oct 24(7):s146-s155. doi: 10.11607/prd.6017.
The purpose of this study was to evaluate the effect of 2% chlorhexidine (CHX) on an etch-and rinse adhesive to dentin. Caries-free molars were selected and processed to expose a flat dentin surface. The specimens were bonded with a composite resin by an etch-and-rinse adhesive, which was pretreated with 2% CHX for 0, 15, 30, 45, and 60 seconds. The microtensile bond strength (MTBS) was evaluated before and after thermocycling. No significant differences were observed between groups before thermocycling. The 60-second CHX-pretreated group showed a significantly greater MTBS than the control group after thermocycling. The 2% CHX pretreatment could improve the bonding strength of the etch-and-rinse adhesive and slow down the aging progress of the bonding interface.
本研究旨在评估 2%洗必泰（CHX）对牙本质酸蚀-冲洗型黏结剂的影响。选择无龋磨牙并进行处理以暴露平坦的牙本质表面。通过酸蚀-冲洗型黏结剂将样本黏结复合树脂，2% CHX 预处理 0、15、30、45 和 60 秒。在热循环前后评估微拉伸黏结强度（MTBS）。热循环前各组间无显著差异。热循环后，60 秒 CHX 预处理组的 MTBS 显著高于对照组。2% CHX 预处理可提高酸蚀-冲洗型黏结剂的黏结强度并减缓黏结界面的老化进程。
