| 螺环原酸酯对牙科基体树脂的改性研究 |
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| 引用本文： | 付静,贾芳,刘小青.螺环原酸酯对牙科基体树脂的改性研究[J].临床口腔医学杂志,2010,26(2):80-83. |
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| 作者姓名： | 付静 贾芳 刘小青 |
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| 作者单位： | 口腔疾病研究国家重点实验室·四川大学华西口腔医学院,四川,成都,610041 |
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| 基金项目： | 国家自然科学基金资助项目(50673065) |
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| 摘 要： | 目的：用螺环原酸酯膨胀单体对牙科BisS-GMA基体树脂进行改性的研究。方法：分别以BisS-GMA和Bis-GMA作树脂基质,TEGDMA为稀释单体,加入和不加入螺环原酸酯膨胀单体,配制四种基体树脂。以CQ/DMAEMA为光引发体系,光固化后测定并比较其体积收缩率、聚合转化率、粘接拉伸强度和固化时间。结果：含膨胀单体的BisS-GMA基体树脂的体积收缩率较低,聚合转化率和粘接拉伸强度较高,且固化时间合适。结论：螺环原酸酯膨胀单体的开环聚合反应能使BisS-GMA基体树脂的体积收缩率显著降低,并能提高其聚合转化率和粘接拉伸强度。
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| 关 键 词： | 螺环原酸酯 牙科基体树脂 体积收缩率 粘接拉伸强度 |
Study on dental matrix resin modified with spiro orthoester |
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| FU Jing,JIA Fang,LIU Xiao-qing.Study on dental matrix resin modified with spiro orthoester[J].Journal of Clinical Stomatology,2010,26(2):80-83. |
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| Authors: | FU Jing JIA Fang LIU Xiao-qing |
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| Institution: | FU Jing,JIA Fang,LIU Xiao-qing.State Key Laboratory of Oral Diseases,West China College of Stomatology,Sichuan University,Shichuan Chengdu,610041,China. |
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| Abstract: | Objective:Modification of dental BisS-GMA matrix resin with spiro orthoester was researched.Method:BisS-GMA and Bis-GMA were used as resin matrix respectively,with TEGDMA as diluent,added expanding monomer or not,then four groups of matrix resins were prepared.CQ/DMAEMA were used as photoinitiation system to initiate the copolymerization of matrix resin.Tested and compared volumetric shrinkage,the degree of conversion,tensile bond strength and curing time.Result:The volumetric shrinkage of the BisS-GMA matr... |
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| Keywords: | spiro orthoester dental matrix resin volumetric shrinkage tensile bond |
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