al-Athel M S, Jagger R G
Department of Restorative Dentistry, University of Wales College of Medicine, Dental School, Cardiff, United Kingdom.
J Prosthet Dent. 1996 Nov;76(5):535-40. doi: 10.1016/s0022-3913(96)90014-1.
The purpose of this study was to compare the peel, tensile, and shear bond strength values of a commonly used heat-cured denture soft-lining material (Molloplast-B) bonded to a polymethyl methacrylate denture base material. A further purpose was to evaluate the effect of liner thickness and deformation rate on the bond strength. Results showed that recorded failure and the mode of specimen failure are affected by the type of the test method. The highest tensile and shear strengths were obtained by specimens having the lowest liner thickness. The deformation rate had a significant effect on Molloplast-B tensile and shear strengths. Bond strength results must be interpreted with caution. Cohesive failure of soft lining material during testing provides information regarding the material itself instead of an accurate measure of bond strength.
本研究的目的是比较一种常用的热固化义齿软衬材料（Molloplast-B）与聚甲基丙烯酸甲酯义齿基托材料结合时的剥离强度、拉伸强度和剪切粘结强度值。另一个目的是评估衬层厚度和变形速率对粘结强度的影响。结果表明，记录的破坏情况和试样破坏模式受测试方法类型的影响。衬层厚度最低的试样获得了最高的拉伸强度和剪切强度。变形速率对Molloplast-B的拉伸强度和剪切强度有显著影响。粘结强度结果的解释必须谨慎。测试过程中软衬材料的内聚破坏提供了有关材料本身的信息，而不是粘结强度的准确测量值。
