Electric-current-assisted application of self-etch adhesives to dentin
Electric-current-assisted application of self-etch adhesives to dentin
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DOI：
10.1177/154405910608501205
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发表时间：
2006-12-01
影响因子：
7.6
通讯作者：
Tay, F. R.
中科院分区：
文献类型：
--
作者：
Breschi, L.;Mazzoni, A.;Tay, F. R.
最近，在酸洗胶粘剂系统的应用中使用电流可以通过增强基材浸渍来提高酸洗胶粘剂的粘合力。在这项研究中检验的零假设是，电辅助施加对自酸蚀粘接系统的粘接强度没有影响。三种自酸蚀粘结剂(Protect-Bond、Xeno III和Prompt L-Pop)在电信号发生装置(电邦德)的辅助下应用，并与使用相同的一次性海绵但没有电流的对照组进行测试。与对照组相比，在电流影响下粘结的试件的微拉伸粘结强度增加(p<；0.05)。高分辨扫描电子显微镜分析表明，导电作用下的粘结减少了界面纳米渗漏。据推测，通过电流吸引极性单体或通过修饰牙本质表面电荷，可以改善树脂的渗透，从而产生更好的水替代或蒸发。
The use of electric current during the application of etch-and-rinse adhesive systems has been recently claimed to increase bonding of etch-and-rinse adhesives by enhancing substrate impregnation. The null hypothesis tested in this study was that electrically assisted application has no effect on bond strength of self-etching bonding systems. Three self-etch adhesives ( Protect-Bond, Xeno III, and Prompt L-Pop) were applied with the aid of an electric signal-generating device ( ElectroBond) and tested vs. controls prepared with the same disposable sponges but without electric current. Specimens bonded under the influence of electric current exhibited increased microtensile bond strength compared with the controls ( p < 0.05). High-resolution SEM analysis showed that bonding under the influence of electricity reduced interfacial nanoleakage. It is speculated that resin infiltration may be improved by the attraction of polar monomers by an electric current or by modification of the dentin surface charges, resulting in better water substitution or evaporation.