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J Endod：一种改良的树脂类封闭剂：物理和抗菌特性研究

2018-09-15 lishiting MedSci原创

改良封闭剂物理特性抗菌效果
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这篇研究的目的是为了检测一种混合了季铵化合物、甲基丙烯酸二甲氨基十二烷基酯（DMAHDM）和纳米银(NAg)的树脂类封闭剂的物理和抗菌特性。

这篇研究的目的是为了检测一种混合了季铵化合物、甲基丙烯酸二甲氨基十二烷基酯（DMAHDM）和纳米银(NAg)的树脂类封闭剂的物理和抗菌特性。项目初步完成了一项研究，确定了将DMAHDM和Nag混入AH Plus (Dentsply Sirona， York， PA)时不会改变其物理特性（固化时间、流动性、可溶性和尺寸改变）的最高浓度。选择这些浓度构建了改良树脂类封闭剂(mAH Plus)。采用一种改良的直接接触试验测试AH Plus， DMAHDM + AH Plus， NAg + AH Plus和mAH Plus在1， 7和14天时对粪肠球菌的抗菌效果。结果显示，研究将2.5%浓度的DMAHDM和0.15%的Nag混入AH Plus中。mAH Plus的流动性显著下降，但仍符合美国国家标准协会/美国牙科协会规范的标准。改良封闭剂在固化时间、可溶性和尺寸上没有明显变化。在第一天，与AH Plus相比，0.15% NAg + AH Plus， 2.5% DMAHDM + AH Plus和mAH Plus对粪肠球菌的抗菌性能更高(P < .05)。在第7至14天，2.5% DMAHD

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    2018-09-17 ms7899726347904398

    #抗菌#

    0

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    2018-09-17 12498dd9m12暂无昵称

    #封闭剂#

    0

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    2018-09-17 chenshujs

    #树脂#

    0

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