Department of Restorative Dentistry, Faculty of Dentistry, Erciyes University, Kayseri, Turkey.
J Mech Behav Biomed Mater. 2010 Jul;3(5):399-404. doi: 10.1016/j.jmbbm.2010.03.003. Epub 2010 Mar 10.
The aim of this study was to evaluate the effects of three desensitizing agents on the shear bond strengths of four different bonding agents used to bond composite resin to dentin. A total of 160 extracted human molars were sectioned parallel to the occlusal plane under water cooling, polished and randomly divided into 4 groups of 40. Each group was treated with a different desensitizing agent (Tooth Mousse, Ultra-EZ, Cervitec Plus), except for an untreated control group. Each group was then randomly subdivided into 4 groups of 10, and a different dentin bonding agent (XP Bond, AdheSE, Adper Prompt L-pop, GBond) was applied to each group in order to bond the specimens to a resin composite (Gradia Direct) built up using a plastic apparatus. A Universal Testing Machine was used to measure the shear bond strength of each specimen. Statistical analysis was performed using one-way ANOVA and Tukey's tests. With the exception of the Control/AdheSE and Ultra-EZ/XP Bond groups, no statistically significant differences were found in the shear bond strength values of the groups tested. These findings suggest that the use of different desensitizing agents does not affect the shear bond strength of various adhesive systems used to bond resin composite to dentin.
本研究旨在评估三种脱敏剂对四种不同黏结剂用于黏结复合树脂与牙本质的剪切粘结强度的影响。共选取 160 颗人离体磨牙，在水下冷却条件下平行于牙合面进行切割、抛光，并随机分为 4 组，每组 40 颗。除了未处理的对照组外，每组均用不同的脱敏剂（牙爽、Ultra-EZ、Cervitec Plus）处理。然后，每组再随机分为 4 组，每组 10 个，每个组应用不同的牙本质黏结剂（XP Bond、AdheSE、Adper Prompt L-pop、GBond），以便用塑料器械将标本黏结到复合树脂（Gradia Direct）上。使用万能试验机测量每个标本的剪切粘结强度。使用单因素方差分析和 Tukey 检验进行统计分析。除了对照组/AdheSE 和 Ultra-EZ/XP Bond 组外，其余各组的剪切粘结强度值无统计学差异。这些发现表明，使用不同的脱敏剂不会影响用于黏结复合树脂与牙本质的各种黏结系统的剪切粘结强度。
