Influence of methyl mercaptan on the repair bond strength of composites fabricated using self-etch adhesives.
Influence of methyl mercaptan on the repair bond strength of composites fabricated using self-etch adhesives.
复制标题
甲硫醇对使用自蚀刻粘合剂制造的复合材料修复粘合强度的影响。
DOI：
10.1111/eos.12164
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发表时间：
2015
期刊：
影响因子：
--
通讯作者：
Miyazaki M.
中科院分区：
文献类型：
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作者：
Yokokawa M;Rikuta A;Tsujimoto A;Tsuchiya K;Shibasaki S;Matsuyoshi S;Miyazaki M.
研究了甲基硫醇对自蚀刻胶粘剂制备的复合材料修复粘结强度的影响。通过测量浸入不同浓度甲基硫醇（0.01,0.1和1.0 M）的复合材料上的测试液体的接触角来确定表面自由能。采用自蚀刻胶粘剂对老化的复合材料进行粘接，再对新添加的复合材料进行凝聚处理，以确定修复粘结强度。每个试件各10个试件，以1.0 mm min - 1的十字速度进行剪切试验。样本分析采用两路方差分析，随后采用Tukey's诚实显著差异（HSD）检验。虽然复合材料的分散力保持相对恒定，但随着甲基硫醇浓度的增加，其极性力略有增加。在1.0 M甲基硫醇中浸泡后，氢键力显著增加，导致表面自由能增加。而在1.0 M甲基硫醇溶液中，复合材料修复体的修复键强度显著低于0.01 M和0.10 M甲基硫醇溶液。综上所述，老化复合材料和新加入复合材料的修复结合强度都受到甲基硫醇溶液浸泡的影响。
The influence of methyl mercaptan on the repair bond strength of composites fabricated using self‐etch adhesives was investigated. The surface free‐energies were determined by measuring the contact angles of test liquids placed on composites that had been immersed in different concentrations of methyl mercaptan (0.01, 0.1, and 1.0 M). To determine the repair bond strength, self‐etch adhesives were applied to the aged composite, and then newly added composites were condensed. Ten samples of each specimen were subjected to shear testing at a crosshead speed of 1.0 mm min−1. Samples were analyzed using two‐wayanovafollowed by Tukey's honestly significant difference (HSD) test. Although the dispersion force of the composites remained relatively constant, their polar force increased slightly as the concentration of methyl mercaptan increased. The hydrogen‐bonding forces were significantly higher after immersion in 1.0 M methyl mercaptan, leading to higher surface‐free energies. However, the repair bond strengths for the repair restorations prepared from composites immersed in 1.0 M methyl mercaptan were significantly lower than for those immersed in 0.01 and 0.10 M methyl mercaptan. Considering the results of this study, it can be concluded that the repair bond strengths of both the aged and newly added composites were affected by immersion in methyl mercaptan solutions.