Yang H S, Park Y J
Taehan Chikkwa Uisa Hyophoe Chi. 1989 Feb;27(2):185-200.
The objective of this investigation was to determine whether the composition of composite resin affects the amount of residual monomers and the strength of resin. Six types of resin composition were designed and 30 composite resin specimens were made in glass mold of 6mm diameter and 3mm height. The residual monomer of each specimen was extracted by 10cc ethanol solution for 1, 2, and 3 days of experiment. UV/Vis spectrophotometer was used to estimate the amount of residual monomer of the specimen, and universal testing machine was used to test the diametral tensile strength of the composite resin. The results were as follow; 1. Composite resins of 1% benzoyl peroxide concentration released the higher level of residual monomers than the resin of 0.8% benzoyl peroxide concentration. 2. t-Butylaminoethylmethacrylate.HF of 17% concentration exhibited the greater level of residual monomer than the other resin monomers. 3. As the concentration of the trimethylolpropane trimethacrylate increased, the amount of Bis-GMA residual monomer increased. 4. Composite resin of 1% benzoyl peroxide concentration showed higher tensile strength than the resin of 0.8% benzoyl peroxide concentration. 5. As the concentration of trimethylolpropane trimethacrylate increased above 50%, the strength of the composite resin decreased.
本研究的目的是确定复合树脂的成分是否会影响残留单体的量和树脂的强度。设计了六种树脂成分，并在直径6mm、高3mm的玻璃模具中制作了30个复合树脂标本。在实验的第1、2和3天，用10cc乙醇溶液提取每个标本的残留单体。用紫外/可见分光光度计估计标本的残留单体量，并用万能试验机测试复合树脂的径向拉伸强度。结果如下：1. 过氧化苯甲酰浓度为1%的复合树脂比过氧化苯甲酰浓度为0.8%的树脂释放出更高水平的残留单体。2. 浓度为17%的甲基丙烯酸叔丁氨基乙酯.HF比其他树脂单体表现出更高水平的残留单体。3. 随着三羟甲基丙烷三甲基丙烯酸酯浓度的增加，双酚A缩水甘油醚残留单体的量增加。4. 过氧化苯甲酰浓度为1%的复合树脂比过氧化苯甲酰浓度为0.8%的树脂表现出更高的拉伸强度。5. 当三羟甲基丙烷三甲基丙烯酸酯的浓度增加到50%以上时，复合树脂的强度降低。
