Melendez E J, Arcoria C J, Dewald J P, Wagner M J
Baylor College of Dentistry, Dallas, Texas.
J Prosthet Dent. 1992 Mar;67(3):307-12. doi: 10.1016/0022-3913(92)90235-3.
This study evaluated the bond strength between glass ionomer cements and laser-etched dentin. Extracted human molars were sectioned sagittally, creating a flat surface. Samples were shear tested on an Instron testing machine, and mean bond strengths were recorded; statistical analyses indicated no significant differences between the Ketac cements. The bond strengths of both Ketac cements were significantly decreased when applied to laser-etched dentin, but bond strengths of Fuji-II were substantially elevated compared with the control values.
本研究评估了玻璃离子水门汀与激光蚀刻牙本质之间的粘结强度。将拔除的人类磨牙矢状切开，制成一个平面。在英斯特朗试验机上对样本进行剪切测试，并记录平均粘结强度；统计分析表明Ketac水门汀之间无显著差异。当应用于激光蚀刻牙本质时，两种Ketac水门汀的粘结强度均显著降低，但Fuji-II的粘结强度与对照值相比大幅提高。
