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The efect of disinfectant solutions on the durability of the bond between resin based cement and non-precious metal alloy

机译:消毒液对树脂基水泥与非贵金属合金之间结合耐久性的影响

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摘要

This study evaluated the effect of disinfectants on the tensile bond strength of Nickel-Chromium alloy bonded with resin cement. 180 pairs of Nickel-Chromium dumbbells were prepared. The dumbbells were divided into 3 groups (n=60), which received one of the following treatments: Sandblasted only (control), sandblasted and Perform®-ID or sandblasted and sodium hypochlorite (SH) before bonding with resin cement. All bonded specimens were stored in distilled water for 24 h and half of the specimens were subsequently thermocycled (500 cycles) before debonding. Tensile bond strength was recorded and each dumbbell was examined for failure mode. Two-way ANOVA analysis indicated that overall there was a statistically significant difference between 24 h and thermocycling test, but no differences between sandblasted only, sandblasted and Perform-ID or sandblasted and SH groups. Post-ANOVA contrasts indicated that only the sandblasted and SH group showed a significant difference between the 24 h and thermocycling test. Disinfectants did not significantly decrease tensile bond strength between Nickel-Chromium dumbbells bonded with resin cement.
机译:这项研究评估了消毒剂对镍铬合金与树脂水泥粘结的拉伸粘结强度的影响。准备180对镍铬哑铃。哑铃分为3组(n = 60),接受以下处理之一:仅喷砂(对照),喷砂和Perform®-ID或喷砂和次氯酸钠(SH),然后再与树脂水泥粘合。将所有粘合的样品在蒸馏水中保存24小时,然后将一半的样品在脱胶前进行热循环(500次循环)。记录拉伸粘合强度,并检查每个哑铃的破坏模式。双向ANOVA分析表明,总体而言,在24小时与热循环测试之间存在统计学差异,但仅喷砂,喷砂和Perform-ID或喷砂和SH组之间没有统计学差异。方差分析后的对比表明,仅喷砂和SH组在24小时试验和热循环试验之间显示出显着差异。消毒剂并没有显着降低用树脂水泥粘结的镍铬哑铃之间的拉伸粘结强度。

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