Federal University of Ceará, Fortaleza, CE, Brazil.
Universidade Estadual de Ponta Grossa, Ponta Grossa, PR, Brazil.
Biomed Res Int. 2017;2017:8756396. doi: 10.1155/2017/8756396. Epub 2017 Oct 2.
So far, there is no report regarding the micro-Raman vibrational fingerprint of the bonds between 10-methacryloyloxy-decyl dihydrogen phosphate (10-MDP) and zirconia ceramics. Thus, the aim of this study was to identify the Raman vibrational peaks related to the bonds of 10-MDP with zirconia, as well as the influence on microshear bond strength. Micro-Raman spectroscopy was employed to assess the vibrational peak of 10-MDP binding to zirconia. Microshear bond strength of the dual-cure resin cement to zirconia with the presence of 10-MDP in composition of experimental ceramic primer and self-adhesive resin cement was also surveyed. Statistical analysis was performed by one-way ANOVA and Tukey's test ( < 0.05). Peaks at 1545 cm and 1562 cm were found to refer to zirconia binding with 10-MDP. The presence of 10-MDP in both experimental ceramic primer and self-adhesive resin cement improved microshear bond strength to zirconia ceramic. It can be concluded that the nondestructive method of micro-Raman spectroscopy was able to characterize chemical bonds of 10-MDP with zirconia, which improves the bond strengths of resin cement.
到目前为止，还没有关于 10-甲氧基丙烯酸甲酯二氢磷酸酯（10-MDP）与氧化锆陶瓷之间键的微拉曼振动指纹的报道。因此，本研究旨在确定与 10-MDP 与氧化锆键合相关的拉曼振动峰，以及对微剪切结合强度的影响。采用微拉曼光谱法评估 10-MDP 与氧化锆结合的振动峰。还调查了含有 10-MDP 的实验陶瓷底漆和自粘树脂水泥组成的双固化树脂水泥对氧化锆的微剪切结合强度。通过单因素方差分析和 Tukey 检验进行统计分析（<0.05）。发现 1545cm 和 1562cm 处的峰与 10-MDP 与氧化锆的结合有关。实验陶瓷底漆和自粘树脂水泥中存在 10-MDP 均能提高氧化锆陶瓷的微剪切结合强度。结论：微拉曼光谱学的非破坏性方法能够表征 10-MDP 与氧化锆的化学结合，从而提高树脂水泥的结合强度。
