Tsujimoto Akimasa, Barkmeier Wayne W, Takamizawa Toshiki, Watanabe Hidehiko, Johnson William W, Latta Mark A, Miyazaki Masashi
Department of Operative Dentistry, Nihon University School of Dentistry, Tokyo, Japan.
Department of General Dentistry, Creighton University School of Dentistry, Omaha, NE, USA.
Eur J Oral Sci. 2017 Jun;125(3):215-222. doi: 10.1111/eos.12346. Epub 2017 Apr 28.
This aim of this study was to compare universal adhesives and two-step self-etch adhesives in terms of dentin bond fatigue durability in self-etch mode. Three universal adhesives - Clearfil Universal, G-Premio Bond, and Scotchbond Universal Adhesive - and three-two-step self-etch adhesives - Clearfil SE Bond, Clearfil SE Bond 2, and OptiBond XTR - were used. The initial shear bond strength and shear fatigue strength of resin composite bonded to adhesive on dentin in self-etch mode were determined. Scanning electron microscopy observations of fracture surfaces after bond strength tests were also made. The initial shear bond strength of universal adhesives was material dependent, unlike that of two-step self-etch adhesives. The shear fatigue strength of Scotchbond Universal Adhesive was not significantly different from that of two-step self-etch adhesives, unlike the other universal adhesives. The shear fatigue strength of universal adhesives differed depending on the type of adhesive, unlike those of two-step self-etch adhesives. The results of this study encourage the continued use of two-step self-etch adhesive over some universal adhesives but suggest that changes to the composition of universal adhesives may lead to a dentin bond fatigue durability similar to that of two-step self-etch adhesives.
本研究的目的是在自酸蚀模式下，比较通用型粘结剂和两步法自酸蚀粘结剂在牙本质粘结疲劳耐久性方面的差异。使用了三种通用型粘结剂——Clearfil Universal、G-Premio Bond和Scotchbond Universal Adhesive，以及三种两步法自酸蚀粘结剂——Clearfil SE Bond、Clearfil SE Bond 2和OptiBond XTR。测定了在自酸蚀模式下树脂复合材料与牙本质上粘结剂粘结的初始剪切粘结强度和剪切疲劳强度。还对粘结强度测试后的断裂表面进行了扫描电子显微镜观察。与两步法自酸蚀粘结剂不同，通用型粘结剂的初始剪切粘结强度取决于材料。与其他通用型粘结剂不同，Scotchbond Universal Adhesive的剪切疲劳强度与两步法自酸蚀粘结剂的剪切疲劳强度没有显著差异。与两步法自酸蚀粘结剂不同，通用型粘结剂的剪切疲劳强度因粘结剂类型而异。本研究结果鼓励继续使用两步法自酸蚀粘结剂而非某些通用型粘结剂，但表明通用型粘结剂成分的改变可能会使其牙本质粘结疲劳耐久性与两步法自酸蚀粘结剂相似。
