Nanotube-modified dentin adhesive-Physicochemical and dentin bonding characterizations
Nanotube-modified dentin adhesive-Physicochemical and dentin bonding characterizations
复制标题
DOI：
10.1016/j.dental.2013.08.211
复制
发表时间：
2013-11-01
期刊：
影响因子：
5
通讯作者：
Platt, Jeffrey A.
中科院分区：
文献类型：
--
作者：
Bottino, Marco C.;Batarseh, Ghada;Platt, Jeffrey A.
客观的。本研究的目的是研究将铝硅酸盐粘土纳米管（埃洛石，HNT）掺入市售三步蚀刻和冲洗粘合系统（Adper Scotchbond Multi-Purpose/SBMP）的粘合树脂中对牙本质粘合强度的影响，以及对改性粘合剂的几个关键物理化学性能的影响。通过将五种不同的 HNT 量（5-30 wt.%）添加到 SBMP 牙本质粘合系统的粘合树脂（w/v）中来制备实验粘合剂。评估了改性粘合剂与人牙本质的粘合强度、显微硬度和转化度 (DC)。结果。根据剪切粘合强度数据，确定了浓度为 30 wt.% 的 HNT 掺入可产生与牙本质的最高粘合强度，与对照相比具有统计显着性 (p = 0.025)。尽管添加 30 wt.% HNT 的组显微硬度显着增加 (p < 0.001)，但与对照相比，记录的 DC 显着降低 (p < 0.001)。Signcance。结论是，HNT 的掺入量最高可达 20 wt.%，而不会损害粘合剂的重要物理化学特性。用 20 wt.% HNT 对 SBMP 牙本质粘结剂进行改性似乎在促进持久牙本质粘结方面具有巨大潜力；这不仅是因为增强了粘合界面的可能性，还因为 HNT 具有封装基质金属蛋白酶 (MMP) 抑制剂等治疗剂的内在能力。 (C) 2013 年牙科材料学会。由爱思唯尔有限公司出版。保留所有权利。
Objective. The aim of this study was to investigate the effect of aluminosilicate clay nanotubes (Halloysite, HNT) incorporated into the adhesive resin of a commercially available three-step etch and rinse bonding system (Adper Scotchbond Multi-Purpose/SBMP) on dentin bond strength, as well as the effect on several key physicochemical properties of the modified adhesive.Methods. Experimental adhesives were prepared by adding five distinct HNT amounts (5-30 wt.%) into the adhesive resin (w/v) of the SBMP dentin bonding system. Bond strength to human dentin, microhardness, and degree of conversion (DC) of the modified adhesives were assessed.Results. From the shear bond strength data, it was determined that HNT incorporation at a concentration of 30 wt.% resulted in the highest bond strength to dentin that was statistically significant (p = 0.025) when compared to the control. Even though a significant increase in microhardness (p < 0.001) was seen for the 30 wt.% HNT-incorporated group, a significantly lower DC (p< 0.001) was recorded when compared to the control.Signcance. It was concluded that HNT can be incorporated up to 20 wt.% without jeopardizing important physicochemical properties of the adhesive. The modification of the SBMP dentin bonding agent with 20 wt.% HNT appears to hold great potential toward contributing to a durable dentin bond; not only from the possibility of strengthening the bond interface, but also due to HNT intrinsic capability of encapsulating therapeutic agents such as matrix metalloproteinase (MMP) inhibitors. (C) 2013 Academy of Dental Materials. Published by Elsevier Ltd. All rights reserved.