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2-Methacryloyloxyethyl Phosphorylcholine Polymer Treatment of Complete Dentures to Inhibit Denture Plaque Deposition

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Published on: December 26, 2016

含有10-MDP功能化的酸颗粒的复合材料.

R A A da Silva¹, R B Trinca¹, H S Vilela¹

¹School of Dentistry, Department of Biomaterials and Oral Biology, University of São Paulo, São Paulo, Brazil.

Journal of dental research

|January 29, 2024

概括

将二酸二水合物 (DCPD) 颗粒与10-MDP (10-methacryloyloxydecyl dihydrogen phosphate) 功能化,提高了复合物在水中的稳定性. 这随着时间的推移改善了机械性能,但减少了离子的释放.

科学领域:

生物材料科学生物材料科学
牙科材料牙科材料
聚合物化学聚合物化学

背景情况:

10-MDP (10-MDP) 对于自蚀刻粘合剂中的酸结合至关重要.
酸二 (DCPD) 是牙科复合材料的潜在填充剂.
提高复合材料的耐用性和控制离子释放是牙科修复材料的关键挑战.

研究的目的:

为了使二酸二水合物 (DCPD) 颗粒与10-methacryloyloxydecyl二酸 (10-MDP) 功能化.
评估DCPD功能化对牙科复合材料机械性能和水解稳定性的影响.
评估功能化对复合材料中释放的离子 (Ca2+) 的影响.

主要方法:

在BisGMA/TEGDMA矩阵中配制具有50体积%无机填充剂 (功能化或非功能化DCPD和化玻璃) 的实验性复合材料.
特性包括转换度 (DC),水吸附度 (WS),溶解度 (SL),双轴屈曲强度 (BFS) 和模量 (FM) 在24小时和5个月后,以及28天的Ca2+释放.
使用ANOVA和Tukey测试进行统计分析.

主要成果:

使用10-MDP的DCPD功能化没有影响转换的程度.
与非功能化的DCPD相比,具有功能化的DCPD的复合材料的水吸附和溶解率明显较低.

关键词:

降解降解降解降解降解.功能化的功能化.离子释放释放离子机械性能机械性能机械性能树脂复合材料树脂复合材料水的吸收水分.

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虽然最初的机械强度减少了10-MDP,但具有功能化的DCPD的复合材料在5个月的储水后保持了其机械性能. 在含有10-MDP的配方中,Ca2+释放量显著降低.

结论:

用10-MDP对DCPD的功能化增强了复合材料对水解降解的抵抗力,并提高了长期的机械稳定性.
10-MDP功能化有效降低了水吸附和溶解度,有助于提高耐用性.
与10-MDP功能化观察到的Ca2+释放的减少归因于粒子矩阵界面的水过渡的改变.