J Endod:牙髓治疗对粪肠球菌粘附的影响

2019-06-10 lishiting MedSci原创

这篇研究的目的是为了检测根管预备和冲洗对粪肠球菌最初粘附于根管牙本质壁的作用,并探讨细菌对充填材料的初始粘附。

这篇研究的目的是为了检测根管预备和冲洗对粪肠球菌最初粘附于根管牙本质壁的作用,并探讨细菌对充填材料的初始粘附。

研究准备了以下样本:预备和未预备的牙本质、施以不同冲洗策略的牙本质和根管充填材料。检测粘附于牙本质壁的粪肠球菌数量。检测粪肠球菌粘附于充填材料的强度以及不同表面的粗糙度。记录表面的接触角。结果通过t检验进行统计学分析。

结果显示,粪肠球菌在预备过的牙本质壁上的粘附量明显高于未预备过的牙本质壁。与其他单独使用的冲洗液相比,仅使用EDTA冲洗过的牙本质壁上细菌粘附量更多(P < .05)。当样本首先暴露于次氯酸钠(NaOCl),随后为EDTA时,终冲洗采用氯己定(CHX)并作用一段时间会减少细菌粘附的数量。单独使用EDTA冲洗时,细菌粘附强度最高,随后为单独使用NaOCl和CHX (P < .05)。牙本质单独施以EDTA会获得最大的表面粗糙度和接触角,随后为单独使用NaOCl和CHX (P < .05)。在NaOCl和EDTA交替冲洗后,终冲洗采用CHX会明显减少接触角(P < .05)。牙胶和封闭剂表面的细菌粘附数量以及粘附强度明显高于牙本质壁表面(P < .05)。

结论:预备和冲洗改变了粪肠球菌对根管牙本质壁最初的粘附,同时也改变了牙本质壁的表面特质。

原始出处:

Xu J, He J, et al. Influence of Endodontic Procedure on the Adherence of Enterococcus faecalis. J Endod. 2019 May 23. pii: S0099-2399(19)30295-X. doi: 10.1016/j.joen.2019.04.006.

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    2019-07-25 jxrzshh
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    2019-06-10 qingfengqishi5

    学习了,学习了

    0

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