论文部分内容阅读
目的 探讨粘结剂对银汞合金充填体粘结强度的影响。方法 选择无龋的离体磨牙 30颗 ,制备相同的Ⅱ类洞型 ,随机分成实验组和对照组。用拉力试验机进行粘结强度测定试验 ,以比较两者间的差别。结果 实验组的粘结强度为 2 0 .98± 2 .7MPa ,对照组为 9.5 3± 1.12MPa,两者间有显著性差异 (P <0 .0 1)。结论 Super -Bond粘结剂能够明显增强其对银汞合金的粘结强度 ,从而提高银汞合金充填体的固位力。
Objective To investigate the effect of binder on the bond strength of silver amalgam filling. Methods 30 dental caries-free incisions were selected to prepare the same class Ⅱ cavities and divided randomly into experimental group and control group. Tensile testing machine for bonding strength determination test to compare the differences between the two. Results The bond strength of the experimental group was 20.98 ± 2 .7MPa and the control group was 9.53 ± 1.12MPa, with significant difference (P <0.01). Conclusion Super-Bond adhesive can significantly enhance its bond strength to silver-amalgam and improve the retention of amalgam filling.