Department of Restorative Sciences, Tokyo Medical and Dental University, Tokyo, Japan.
Dent Mater J. 2011;30(3):315-22. doi: 10.4012/dmj.2010-156. Epub 2011 May 20.
This study was designed to evaluate effects of light-irradiated intensities directly and indirectly through resin composites to one- and two-step self-etch adhesives on dentin bonding. One-step (Clearfil S(3) Bond; TS, Bond Force; BF) or two-step (Clearfil SE Bond; SE) self-etch adhesives was applied to dentin surface. The adhesive agent was light-cured with light-intensity of 350 or 600 mW/cm(2), and then resin composite with different colors (translucent or opaque shade) was filled and light-cured with the same light-intensity as the bonding procedure. After 24 h water storage, bond strengths to dentin were determined using µTBS test. For the 600 and 350 mW/cm(2) groups, translucent shade resin obtained higher µTBS than opaque shade resin. Using SE and BF, the 350 mW/cm(2) group in translucent shade resin was higher µTBS than the 600 mW/cm(2) group in opaque shade resin, while TS showed no different µTBS between them.
本研究旨在评估直接和间接通过树脂复合材料对一和两步自酸蚀黏结剂对牙本质黏结的光照射强度的影响。一步法（Clearfil S(3) Bond；TS，Bond Force；BF）或两步法（Clearfil SE Bond；SE）自酸蚀黏结剂被应用于牙本质表面。黏结剂用光强为 350 或 600 mW/cm(2) 进行光固化，然后用不同颜色（半透明或不透明色调）的树脂复合材料填充，并以与黏结程序相同的光强进行光固化。水储存 24 h 后，使用 µTBS 测试测定牙本质的黏结强度。对于 600 和 350 mW/cm(2) 组，半透明色树脂的 µTBS 高于不透明色树脂。对于 SE 和 BF，半透明色树脂的 350 mW/cm(2) 组的 µTBS 高于不透明色树脂的 600 mW/cm(2) 组，而 TS 两组之间的 µTBS 没有差异。
