Effect of chlorhexidine incorporation into a self-etching primer on dentine bond strength of a luting cement
Effect of chlorhexidine incorporation into a self-etching primer on dentine bond strength of a luting cement
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DOI：
10.1016/j.jdent.2010.03.005
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发表时间：
2010-06-01
影响因子：
4.4
通讯作者：
Tay, F. R.
中科院分区：
文献类型：
--
作者：
Hiraishi, N.;Yiu, C. K. Y.;Tay, F. R.
目的：本研究研究了在自酸蚀底漆中加入氯己定对粘合树脂水门汀与牙本质的粘合强度和抗菌活性的影响。方法：通过在 ED 底漆 2.0（Kuraray Medical Inc.）中添加二醋酸氯己定 (CHX) 来制备实验自酸蚀底漆，以获得 1.0 wt% 和 2.0 wt% 的氯己定浓度。使用实验底漆或纯 ED 底漆将人咬合牙本质表面调节 30 秒。使用Panavia F 2.0 (Kuraray Medical Inc.)对复合块进行染色。在水中储存 24 小时后，将粘合的牙齿切成 0.9 mm x 0.9 mm 的梁，并施加张力至失效，以检查微拉伸粘合强度 (μ TBS)。使用场发射扫描电子显微镜（FE-SEM）检查断裂表面。还在 FE-SEM 下观察了用每种底漆处理过的牙本质表面的形态。通过琼脂扩散试验考察各引物对变形链球菌和粪肠球菌的抗菌效果。结果：引物中添加氯己定效果显着（p
Objectives: This study investigated the effect of incorporating chlorhexidine in a self-etching primer on the bond strength of an adhesive resin cement to dentine and on antibacterial activity.Methods: Experimental self-etching primers were prepared by adding chlorhexidine (CHX) diacetate to ED primer 2.0 (Kuraray Medical Inc.) to obtain chlorhexidine concentrations of 1.0 wt% and 2.0 wt%. Human occlusal dentine surfaces were conditioned for 30 s using the experimental primers or pure ED primer. Composite blocks were luted using Panavia F 2.0 (Kuraray Medical Inc.). After storage in water for 24 h, the bonded teeth were sectioned into 0.9 mm x 0.9 mm beams and stressed to failure in tension to examine microtensile bond strength (mu TBS). Fractured surfaces were examined with a field-emission scanning electron microscopy (FE-SEM). The morphology of dentine surfaces that were conditioned with each primer was also observed under FE-SEM. An agar diffusion test was performed to examine the antibacterial effect of each primer against Streptococcus mutans and Enterococcus faecalis.Results: Addition of chlorhexidine to the primer had significant effects (p