Al Qahtani Mohammed Q, Al Shethri Salah E
Department of Restorative Dental Science, King Saud University, College of Dentistry, P.O. Box 60169, Riyadh 11545, Saudi Arabia.
Saudi Dent J. 2010 Oct;22(4):171-5. doi: 10.1016/j.sdentj.2010.07.004. Epub 2010 Aug 3.
To evaluate the shear bond strength of one-step self-etch adhesives with different co-solvent ingredients to dry or moist dentin.
A total of 60 extracted teeth were used in this study, and were divided according to the adhesive systems and dentin conditions into 6 groups of 10 teeth each [Xeno III - dry dentin, Xeno III - moist dentin, Adper Prompot L-Pop - dry dentin, Adper Prompot L-Pop - moist dentin, iBond - dry dentin, and iBond - moist dentin]. Resin composite cylinder was built up on each specimen, and then thermocycled. A shear load was applied to the specimens using universal testing (Instron machine) at a cross-head speed of 0.5 mm/min until failure occurred. Data were statistically analyzed by one-way ANOVA and Bonferroni multiple comparison test at 95% confidence level.
BASED ON THE FINDINGS OF THIS STUDY: The highest mean shear bond strength to dry dentin was seen when Xeno III containing ethanol co-solvent ingredient was used. The highest mean shear bond strength to moist dentin was seen when iBond which contains acetone co-solvent ingredient was used. In the absence of a co-solvent ingredient in self-etch adhesive (Adper Prompot L-Pop), the mean shear bond strengths to dry and moist dentin were low with no significant difference between them.
评估含不同助溶剂成分的一步法自酸蚀粘结剂与干燥或潮湿牙本质之间的剪切粘结强度。
本研究共使用60颗拔除的牙齿，根据粘结系统和牙本质状况分为6组，每组10颗牙[Xeno III - 干燥牙本质，Xeno III - 潮湿牙本质，Adper Prompot L-Pop - 干燥牙本质，Adper Prompot L-Pop - 潮湿牙本质，iBond - 干燥牙本质，iBond - 潮湿牙本质]。在每个样本上堆积树脂复合体圆柱体，然后进行热循环处理。使用万能试验机（英斯特朗试验机）以0.5毫米/分钟的十字头速度对样本施加剪切载荷，直至发生破坏。数据采用单因素方差分析和Bonferroni多重比较检验进行统计学分析，置信水平为95%。
基于本研究结果：使用含乙醇助溶剂成分的Xeno III时，对干燥牙本质的平均剪切粘结强度最高。使用含丙酮助溶剂成分的iBond时，对潮湿牙本质的平均剪切粘结强度最高。在自酸蚀粘结剂（Adper Prompot L-Pop）中不含助溶剂成分时，对干燥和潮湿牙本质的平均剪切粘结强度均较低，且两者之间无显著差异。
