Bindra B, Heath J R
Turner Dental School, University of Manchester, U.K.
J Oral Rehabil. 1997 Jan;24(1):63-9. doi: 10.1046/j.1365-2842.1997.00458.x.
The tensile and shear adhesive bond strengths of two addition cured silicones (Provil and Express) and a polyether (Impregum) impression material to brass, poly(methylmethacrylate) and visible light-cured (VLC) tray resin were determined. Adhesive application significantly increased the bond strength; Provil and Express adhered most strongly to brass; whilst the Impregum-VLC combination produced the strongest bond. Indeed, VLC resin generated greater adhesion than acrylic resin. Exchanging the adhesives specified for each silicone material generally resulted in higher bond strengths. No correlation was established between speed of separation of the test surfaces and bond strength. For optimum clinical performance, the impression material (adhesive) tray material giving the highest bond strength should be utilized.
测定了两种加成型固化硅橡胶（Provil和Express）以及一种聚醚（Impregum）印模材料与黄铜、聚甲基丙烯酸甲酯和可见光固化（VLC）托盘树脂之间的拉伸和剪切粘结强度。使用粘结剂显著提高了粘结强度；Provil和Express与黄铜的粘结力最强；而Impregum与VLC树脂的组合产生了最强的粘结力。实际上，VLC树脂产生的粘合力比丙烯酸树脂更大。更换为每种硅橡胶材料指定的粘结剂通常会导致更高的粘结强度。测试表面的分离速度与粘结强度之间未建立相关性。为了获得最佳临床性能，应使用粘结强度最高的印模材料（粘结剂）托盘材料。
