Shirai Kenichi, De Munck Jan, Yoshida Yasuhiro, Inoue Satoshi, Lambrechts Paul, Suzuki Kazuomi, Shintani Hideaki, Van Meerbeek Bart
Leuven BIOMAT Research Cluster, Department of Conservative Dentistry, School of Dentistry, Oral Pathology and Maxillo-Facial Surgery, Catholic University of Leuven, Kapucijnenvoer 7, 3000 Leuven, Belgium.
Dent Mater. 2005 Feb;21(2):110-24. doi: 10.1016/j.dental.2004.01.003.
The purpose of this study was to determine the effect polymerization contraction stress may have on bond durability.
Bonding effectiveness was assessed by micro-tensile bond strength testing (muTBS) and electron microscopy. The muTBS to flat dentin surfaces and in standardized cavities was determined (this after 1 day as well as 1 year water storage). Six adhesives representing all current classes were applied: two etch-and-rinse (OptiBond FL, Kerr; Scotchbond 1, 3M ESPE), two self-etch (Clearfil SE Bond, Kuraray; Adper Prompt, 3M ESPE) and two glass-ionomer (Fuji Bond LC, GC; Reactmer, Shofu) adhesives.
The conventional 3-step etch-and-rinse adhesive OptiBond FL bonded most effectively to dentin, and appeared insensitive to polymerization shrinkage stress and water degradation. The 2-step self-etch adhesive Clearfil SE Bond most closely approached this superior bonding effectiveness and only slightly lost bond strength after 1-year water exposure. The 2-step etch-and-rinse adhesive Scotchbond 1 and the 'strong' 1-step self-etch adhesive Adper Prompt appeared very sensitive to cavity configuration and water-aging effects. The 2-step resin-modified glass-ionomer adhesive Fuji Bond LC only suffered from shrinkage stress, but not from 1-year water-exposure. Remarkable also is the apparent repairability of the 'mild' 1-step glass-ionomer adhesive Reactmer when stored for 1 year in water, in spite of the very low 1-day muTBS.
Simplified bonding procedures do not necessarily imply improved bonding performance, especially in the long term.
本研究旨在确定聚合收缩应力对粘结耐久性可能产生的影响。
通过微拉伸粘结强度测试(μTBS)和电子显微镜评估粘结效果。测定了粘结剂与平坦牙本质表面以及标准化窝洞的μTBS(在储存1天以及1年后测定)。应用了代表当前所有类别的六种粘结剂:两种酸蚀冲洗粘结剂(OptiBond FL,登士柏;Scotchbond 1,3M ESPE)、两种自酸蚀粘结剂(Clearfil SE Bond,可乐丽;Adper Prompt,3M ESPE)和两种玻璃离子粘结剂(Fuji Bond LC,GC;Reactmer,松风)。
传统的三步酸蚀冲洗粘结剂OptiBond FL与牙本质的粘结效果最佳,并且似乎对聚合收缩应力和水降解不敏感。两步自酸蚀粘结剂Clearfil SE Bond最接近这种优异的粘结效果,在水暴露1年后仅略有粘结强度损失。两步酸蚀冲洗粘结剂Scotchbond 1和“强力”一步自酸蚀粘结剂Adper Prompt对窝洞形态和水老化效应非常敏感。两步树脂改性玻璃离子粘结剂Fuji Bond LC仅受收缩应力影响,但不受1年水暴露的影响。同样值得注意的是,“温和”的一步玻璃离子粘结剂Reactmer在水中储存1年后,尽管1天的μTBS非常低,但仍具有明显的可修复性。
简化的粘结程序不一定意味着粘结性能的提高,尤其是从长期来看。