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J Periodontal Res:抗生素缓解正畸力对结扎诱导的实验性小鼠牙周炎的骨吸收的加重

2017-07-28 MedSci MedSci原创

如果牙周炎未得到很好的控制,正畸力(OF)会加重牙周炎。然而,潜在的机制还不完全清楚。本研究旨在研究抗生素对结扎诱导的小鼠实验性牙周炎OF加重的影响。

如果牙周炎未得到很好的控制,正畸力(OF)会加重牙周炎。然而,潜在的机制还不完全清楚。本研究旨在研究抗生素对结扎诱导的小鼠实验性牙周炎OF加重的影响。

材料与方法:将C57BL / 6小鼠(雄性,8周龄)分为三组(n = 8)。丝线结扎(SL)在第0天在上颌右侧(组1)或两侧(第2组和第3组)第一磨牙,第8天取出,从第8天开始通过饮用水(组3)全身给予抗生素。自第13天(第2组和第3组)OF应用于上颌右侧第一磨牙。所有小鼠在第20天处死。

结果:第20天时与第1组相比,第2组口内细菌明显多,而当给予抗生素时,第3组细菌数大大降低。在第1组中,SL侧与对照侧相比牙周骨吸收明显增加。组2中,OF + SL侧的牙周骨吸收明显增加(p <0.05),而第3组由于给予全身抗生素骨吸收并没有明显差异。组2中的核因子κB配体/骨保护素受体激活剂的牙龈mRNA和蛋白表达显着增加(P <0.01),但在3组中不明显。然而, 在第2组和第3组中观察到,在OF + SL侧牙周间隙中抗酒石酸酸性磷酸酶阳性细胞的形成和牙齿移动。

结果表明,通过抗生素给药减少口腔细菌负荷缓解正畸力引起的牙周炎骨吸收。

原始出处:

J. Shi, Z. Liu, T. Kawai, et al. Antibiotic administration alleviates the aggravating effect of orthodontic force on ligature-induced experimental periodontitis bone loss in mice. Journal of periodontal research. 2017 August. doi: 10.1111/jre.12439

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    2018-06-15 lujian
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    2017-10-11 feather89
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    2017-07-30 grace5700
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    2017-07-30 徐岩

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