应用模式对两种通用型黏结剂的纳米渗漏表达和抗剪黏结强度的影响。
Application Modes Affect Two Universal Adhesive Systems' Nanoleakage Expression and Shear Bond Strength.
机构信息
Restorative Dentistry Department, Faculty of Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia.
Conservative Dentistry Department, Faculty of Dentistry, Alexandria University, Alexandria, Egypt.
出版信息
Biomed Res Int. 2021 Sep 30;2021:7375779. doi: 10.1155/2021/7375779. eCollection 2021.
OBJECTIVES
The aim of this study was to evaluate the shear bond strength and the nanoleakage expression of CLEARFIL Universal Bond Quick and Tetric N-Bond adhesive systems bonded to dentin.
MATERIALS AND METHODS
100 freshly extracted human premolar teeth were utilized. The teeth were sectioned to expose dentin. All dentin specimens were assigned into 4 experimental groups; 2 groups had Universal Bond Quick (Universal group) and Tetric N-Bond (Tetric group) applied in the self-etch mode, while 2 groups had Universal Bond Quick (Universal group) and Tetric N-Bond (Tetric group) applied in the total-etch mode. = 15 for shear bond strength and = 10 for nanoleakage experiment. One-way ANOVA and Kruskal-Wallis test were utilized to analyze the shear bond strength test and the nanoleakage expression, respectively.
RESULTS
The highest significant bond strength value was recorded by the Tetric specimens ( < 0.05) when compared to the remaining three groups. There were no statistically significant differences between the shear bond strength values recorded in the Tetric, Universal, and Universal groups ( < 0.05). Both bonding systems applied in the self-etch mode (Universal, Tetric) had no silver nitrate deposits in the hybrid layer and the hybrid layer-adhesive interface ( < 0.001); however, both bonding systems applied in the total-etch mode (Universal, Tetric) had silver nitrate deposits in the hybrid layer, the hybrid layer-adhesive interface, and the bonding layer ( < 0.001).
CONCLUSION
Applying the Universal Bond Quick and Tetric N-Bond in the self-etch mode exhibited better results in terms of nanoleakage expression. Universal Bond Quick showed the stability of the shear bond strength to dentin when applied using the total-etch or self-etch modes. Tetric N-Bond showed significant deterioration in bond strength when applied in the total-etch mode and exhibited the highest bond strength when applied in the self-etch mode.
目的
本研究旨在评估 CLEARFIL Universal Bond Quick 和 Tetric N-Bond 两种黏结剂系统在黏结于牙本质时的剪切黏结强度和纳米渗漏表达。
材料和方法
使用 100 颗新鲜提取的人前磨牙。将牙齿切成暴露牙本质。所有牙本质标本均分为 4 个实验组；两组采用自酸蚀模式下的 Universal Bond Quick（通用组）和 Tetric N-Bond（Tetric 组），两组采用全酸蚀模式下的 Universal Bond Quick（通用组）和 Tetric N-Bond（Tetric 组）。每组有 15 个样本用于剪切黏结强度测试，有 10 个样本用于纳米渗漏实验。采用单因素方差分析和 Kruskal-Wallis 检验分别分析剪切黏结强度测试和纳米渗漏表达。
结果
与其余三组相比，Tetric 组的黏结强度值最高（ < 0.05）。Tetric、Universal 和 Universal 组之间的剪切黏结强度值无统计学差异（ < 0.05）。自酸蚀模式下（Universal、Tetric）应用的两种黏结系统在混合层和混合层-黏结剂界面均无硝酸银沉积物（ < 0.001）；然而，全酸蚀模式下（Universal、Tetric）应用的两种黏结系统在混合层、混合层-黏结剂界面和黏结层均有硝酸银沉积物（ < 0.001）。
结论
在自酸蚀模式下应用 Universal Bond Quick 和 Tetric N-Bond 时，纳米渗漏表达方面的效果更好。当采用全酸蚀或自酸蚀模式时，Universal Bond Quick 显示出对牙本质剪切黏结强度的稳定性。当采用全酸蚀模式时，Tetric N-Bond 的黏结强度显著降低，而当采用自酸蚀模式时，其黏结强度最高。
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