El-Amin Ayman M, Daifalla Lamia E, Zaazou Mohamed H, Gomaa Hussein A F, Mobarak Enas H
J Adhes Dent. 2015 Apr;17(2):163-8. doi: 10.3290/j.jad.a33971.
To investigate the effect of pre-repair aging periods and intermediate adhesive systems based on different monomers on the repair bond strength of silorane-based resin composite.
A total of 32 Filtek P90 (3M ESPE) substrate specimens (4 mm diameter and 4 mm height) were made. Substrate specimens were grouped according to the pre-repair time periods into four groups (n = 8/group): 15 to 30 min, 24 h, 1 month, and 3 months. All substrate specimens were ground flat using a diamond stone and were etched using Scotchbond phosphoric acid etchant (3M ESPE). The specimens of each pre-repair time period were equally distributed among the two repair groups, using either silorane-based (P90 System Adhesive) or acrylamide-based (AdheSE One F, Ivoclar Vivadent) intermediate adhesive systems. Specimens of P90 System adhesive received Filtek P90 as the repair resin composite, and Tetric N-Ceram (Ivoclar Vivadent) was used with AdheSE One F specimens. Additional specimens were made from the repair resin composite materials to study the cohesive strength. Specimens were sliced into sticks (0.6 ± 0.01 mm2) for microtensile bond strength testing (μTBS). Modes of failure were determined.
Two-way ANOVA with repeated measures revealed no significant effect for the pre-repair aging periods, intermediate adhesive systems based on different monomers, or their interaction on repair bond strength of silorane-based resin composite.
Up to 3 months of pre-aging the repaired silorane-based resin composite had no negative effect on its repair bond strength, even when an intermediate adhesive system based on a different monomer (acrylamide) was used.
研究修复前老化时间以及基于不同单体的中间粘结系统对硅烷化树脂复合材料修复粘结强度的影响。
制作了32个Filtek P90（3M ESPE）基底试件（直径4mm，高4mm）。基底试件根据修复前时间分为四组（每组n = 8）：15至30分钟、24小时、1个月和3个月。所有基底试件用金刚石磨石磨平，并用Scotchbond磷酸蚀刻剂（3M ESPE）蚀刻。每个修复前时间段的试件平均分配到两个修复组中，分别使用基于硅烷的（P90系统粘结剂）或基于丙烯酰胺的（AdheSE One F，义获嘉伟瓦登特公司）中间粘结系统。使用Filtek P90作为修复树脂复合材料用于P90系统粘结剂试件，而AdheSE One F试件使用Tetric N-Ceram（义获嘉伟瓦登特公司）。从修复树脂复合材料制作额外的试件以研究内聚强度。将试件切成小条（0.6±0.01mm2）用于微拉伸粘结强度测试（μTBS）。确定失效模式。
重复测量的双向方差分析显示，修复前老化时间、基于不同单体的中间粘结系统或它们对硅烷化树脂复合材料修复粘结强度的相互作用均无显著影响。
修复的硅烷化树脂复合材料预老化长达3个月对其修复粘结强度没有负面影响，即使使用基于不同单体（丙烯酰胺）的中间粘结系统。
