Department of Oral Rehabilitation, the University of Hong Kong, Hong Kong.
J Adhes Dent. 2011 Oct;13(5):445-53. doi: 10.3290/j.jad.a22095.
To determine the adhesion of resin-modified glass-ionomer cement to bovine dentin under contaminated and decontaminated conditions.
Forty-five bovine mandibular incisors were used. The surfaces of bovine dentin specimens were subjected to Temp-bond, dental handpiece lubricant (contamination), Hibiscrub, chlorhexidine or pumice (decontamination), as well as contamination followed by decontamination. From these, 14 test groups were created to investigate the effects of these variables on the microtensile bond strength of a resin-modified glassionomer cement to dentin. In addition, scanning electron microscopy was performed to examine the effects of contamination and decontamination procedures on the dentin surfaces. The data were analyzed by one-way ANOVA, Kruskal-Wallis, and Mann-Whitney tests.
SEM examination showed visible differences between the control group and dentin contaminated with Temp-bond or handpiece lubricant. All the contamination and decontamination test agents when used alone - except Hibiscrub - showed significant reductions in bond strength when compared to the control (p < 0.001). All the test groups subjected to contamination followed by decontamination showed a significantly reduced bond strength (p < 0.001) when compared to the control, with the exception of the handpiece lubricant/Hibiscrub combination.
Under the conditions tested, Temp-bond, handpiece lubricant, chlorhexidine, and pumice may have an adverse effect on the bonding of resin-modified glass ionomer to dentin. Hibiscrub was effective in decontaminating handpiece lubricant but not Temp-bond.
确定在污染和去污条件下，树脂改性玻璃离子水门汀对牛牙本质的黏附性。
使用 45 颗牛下颌切牙。牛牙本质标本的表面经过 Temp-bond、牙科手机润滑剂（污染）、Hibiscrub、洗必泰或浮石（去污）以及污染后去污处理。从这些处理中，创建了 14 个测试组，以研究这些变量对树脂改性玻璃离子水门汀与牙本质之间的微拉伸黏附强度的影响。此外，还进行了扫描电子显微镜检查，以研究污染和去污程序对牙本质表面的影响。数据采用单因素方差分析、Kruskal-Wallis 和 Mann-Whitney 检验进行分析。
SEM 检查显示，对照组和用 Temp-bond 或手机润滑剂污染的牙本质之间存在明显差异。单独使用所有污染和去污测试剂 - 除了 Hibiscrub 之外 - 与对照组相比，黏附强度均显著降低（p < 0.001）。与对照组相比，所有经过污染后去污处理的测试组的黏附强度均显著降低（p < 0.001），除了手机润滑剂/Hibiscrub 组合之外。
在测试条件下，Temp-bond、手机润滑剂、洗必泰或浮石可能会对树脂改性玻璃离子水门汀与牙本质的黏附产生不利影响。Hibiscrub 可有效去除手机润滑剂，但不能去除 Temp-bond。
