Cekic-Nagas Isil, Ergun Gulfem, Tezvergil Arzu, Vallittu Pekka K, Lassila Lippo V J
Department of Prosthodontics, Faculty of Dentistry, Gazi University, Ankara, Turkey.
Dent Mater J. 2008 Sep;27(5):736-43. doi: 10.4012/dmj.27.736.
The aim of this study was to evaluate the effect of fiber-reinforced composite (FRC) at the interface on bonding of resin core systems to bovine dentin using different adhesive systems. To this end, the labial surfaces of 60 bovine incisors were ground to obtain flat dentin surfaces and then divided into two groups according to the adhesive system used: total-etching (Solobond Plus) versus self-etching (Clearfil SE Bond). Resin core systems were bonded to tooth structure either without or with a FRC layer (everStick Net, StickTech). For groups with FRC layer, a silicon forming aid was used to adapt the latter on the dentin surfaces. After resin core was polymerized with Optilux 501 for 40 seconds, the specimens were tested in a universal testing machine. ANOVA revealed that presence of FRC at the interface had a significantly positive effect on bond strength (p < 0.001). However, differences between groups were not significant for either adhesive system (p = 0.076) or with the use of silicon forming aid (p = 0.348).
本研究的目的是使用不同的粘结系统评估纤维增强复合材料（FRC）在界面处对树脂核系统与牛牙本质粘结的影响。为此，将60颗牛切牙的唇面磨平以获得平坦的牙本质表面，然后根据所使用的粘结系统分为两组：全酸蚀粘结剂（Solobond Plus）和自酸蚀粘结剂（Clearfil SE Bond）。树脂核系统要么不使用FRC层，要么使用FRC层（everStick Net，StickTech）粘结到牙体结构上。对于有FRC层的组，使用硅形成助剂将其适配于牙本质表面。在用Optilux 501将树脂核聚合40秒后，在万能试验机上对标本进行测试。方差分析显示，界面处FRC的存在对粘结强度有显著的积极影响（p < 0.001）。然而，对于任何一种粘结系统，组间差异均不显著（p = 0.076）；对于是否使用硅形成助剂，差异也不显著（p = 0.348）。
