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首页> 外文期刊>Journal of Applied Polymer Science >Effects of a New 4-Acryloxyethyltrimellitic Acid in a Visible Light-Cured Dental Adhesive on Adhesion and Polymerization Reactivity
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Effects of a New 4-Acryloxyethyltrimellitic Acid in a Visible Light-Cured Dental Adhesive on Adhesion and Polymerization Reactivity

机译：可见光固化牙科用胶粘剂中新型4-丙烯氧乙基三苯三酸对黏附和聚合反应性的影响

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摘要

A mew adhesive-promoting monomer,4-acryloxyethyltrimellitic acid(4-AET),was synthesized.The effects on the adhesion to bovine dentin and the polymerization reactivity[the inclusion varying from o to 10 wt% 4-AET of the experimental light-cured dental bonding resins(adhesive),wherein the adhesives were aged artificially at 50degC over 2 weeks]were investigated,using tensile and shear bond testing a differential scanning calorimeter (DSC),and a scanning electron microscopy(SEM).Tensile and shear bond strenths to ground dentin were not significantly decreased in 4-AET content over 2 weeks of aging,and the optimum concentration of 4-AET was found to be 5 wt%.The correlation between the tensile and shear bond strengths to the dentin was highly positive(r=0.8517-0.9329)during the 2 weeks.The maximum temperature(T_(max)of the polymerization in DSC was affected by the 4-AET content in the positive correlation.The correlation between the T_(max)and the bond strength to dentin was highly positive(r=0.8995-0.9644).The SEM study showed that the bonding resin appeared to adhere strongly to ground dentin without the formation of resin-tags in the dentinal tubules.It was suggested that the bonding strength was attributable to the degree of penetration of the 4-AET/HEMA primer into the dentin and the polymerization reactivity of the bonding resin comprising 4-AET.
机译：合成了一种促进粘合的单体4-丙烯酰氧基乙基亚苯三酸（4-AET）。其对牛牙本质的粘附性和聚合反应性的影响[实验光的4-OET的含量在0至10 wt％之间变化。研究了固化的牙科粘合树脂（粘合剂），其中粘合剂在50°C下人工老化2周]，使用拉伸和剪切粘合测试差示扫描量热仪（DSC）以及扫描电子显微镜（SEM）。老化2周后4-AET含量对磨碎的牙本质的强度没有显着降低，并且4-AET的最佳浓度为5 wt％。对牙本质的拉伸和剪切粘结强度之间的相关性呈高度正相关（r = 0.8517-0.9329）在2周内.DSC中聚合反应的最高温度（T_（max）受4-AET含量的正相关影响.T_（max）与键强度之间的相关性牙本质高度阳性e（r = 0.8995-0.9644）。SEM研究表明粘结树脂似乎牢固地粘附在磨碎的牙本质上，而在牙本质小管中没有形成树脂标签，这表明粘结强度与渗透程度有关4-AET / HEMA底漆在牙本质中的含量和包含4-AET的粘结树脂的聚合反应活性。

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