Cariology and Operative Dentistry, Department of Restorative Sciences, Graduate School, Tokyo Medical and Dental University, Tokyo, Japan.
Dent Mater J. 2012;31(3):394-400. doi: 10.4012/dmj.2011-245. Epub 2012 May 14.
This study was aimed to determine the effectiveness of grinding and pre-etching in promotion of adhesion to human intact enamel using the self-etch adhesive (SEA) Adper Easy Bond (3M ESPE). Etch-and-rinse adhesive Adper Single Bond (3M ESPE) served as control. Composite cylinders (AP-X Kuraray) were built and after 24 h micro-shear bond strengths (MSBS) were measured. Bonding interfaces were evaluated under scanning electron microscope (SEM). For evaluation of average roughness (Ra) and morphological analysis, treated enamel surfaces were observed under SEM and confocal laser scanning microscope (CLSM) with 3D surface profiling. Highest bond strengths were obtained by pre-etching and grinding showed a less significant role. Phosphoric acid (PA) etching compare to grinding created significantly rougher surface (Ra: 0.72 and 0.43 µm respectively). Therefore, this study recommends pre-etching the intact enamel prior to application of the adhesive instead of grinding.
本研究旨在确定使用自酸蚀粘结剂（SEA）Adper Easy Bond（3M ESPE）对人完整釉质进行打磨和预处理对粘结效果的影响。酸蚀-冲洗粘结剂 Adper Single Bond（3M ESPE）作为对照组。制备复合圆柱体（AP-X Kuraray），并在 24 小时后测量微剪切粘结强度（MSBS）。使用扫描电子显微镜（SEM）对粘结界面进行评估。为了评估平均粗糙度（Ra）和形态分析，使用 SEM 和共聚焦激光扫描显微镜（CLSM）观察经处理的釉质表面，并用 3D 表面轮廓仪进行观察。预处理和打磨均可获得最高的粘结强度，但打磨的作用不明显。与打磨相比，磷酸（PA）蚀刻可产生更粗糙的表面（Ra：分别为 0.72 和 0.43 µm）。因此，本研究建议在应用粘结剂之前对完整釉质进行预处理，而不是打磨。
