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首页> 外文期刊>Journal of biomedical materials research. Part B, Applied biomaterials. >Design, formulation, and evaluation of isocyanatoacrylate copolymer dental adhesives.
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Design, formulation, and evaluation of isocyanatoacrylate copolymer dental adhesives.

机译：异氰酸根合丙烯酸酯共聚物牙科胶粘剂的设计，配制和评估。

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Experiments have recently been completed to explore the development of isocyanatoacrylate copolymers as new dental adhesives. A main goal of this work was to test the utility of solubility parameter differences between the candidate adhesives and etched dentin as a predictor of relative bond strength. All candidate adhesive mixtures contained 2-isocyanatoethyl methacrylate (IEM), a selected amount of tri-n-butylborane oxide (TBBO) initiator, and one of 13 methacrylate comonomers. Reactivity ratios were computed for comonomer pairs as indicators of relative reactivity. The concentration of TBBO was optimized for each comonomer mixture to obtain working times of 2-6 min and setting times of 6-10 min. The solubility parameter difference Deltadelta (J/cm(3))(1/2) was calculated for each test mixture with respect to an etched dentin substrate, as an approximation of wetting ability. Using standard techniques for shear bond strength evaluation, mean shear bond strength values ranging between 7-15.5 MPa were obtained for comonomer adhesives in bonding Z-100 composite to treated dentin. Shear bond strength values showed a good correlation (r = -0.612, P
机译：最近完成了一些实验，以探索异氰酸根合丙烯酸酯共聚物作为新型牙科粘合剂的开发。这项工作的主要目标是测试候选粘合剂和蚀刻牙本质之间的溶解度参数差异是否可作为相对粘合强度的预测指标。所有候选粘合剂混合物均包含甲基丙烯酸2-异氰酸根合乙酯（IEM），一定量的三正丁基硼烷氧化物（TBBO）引发剂和13种甲基丙烯酸共聚单体之一。计算共聚单体对的反应率，作为相对反应性的指标。针对每种共聚单体混合物优化了TBBO的浓度，以获得2-6分钟的工作时间和6-10分钟的凝固时间。对于每种测试混合物，相对于蚀刻后的牙本质基质，计算溶解度参数差Δδ（J / cm（3））（1/2），作为润湿能力的近似值。使用标准技术进行剪切粘结强度评估，将Z-100复合材料粘结到处理过的牙本质上的共聚单体粘合剂的平均剪切粘结强度值在7-15.5 MPa之间。剪切粘结强度值与溶解度参数差异显示出良好的相关性（r = -0.612，P

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