J Endod:XP-endo Shaper和Reciproc器械可以减少细菌和硬组织碎屑的推出及根管内细菌

2018-06-14 lishiting MedSci原创

这篇研究的目的是通过万用分析法比较经XP-endo Shaper (FKG Dentaire, La Chaux-de-Fonds, Switzerland)或Reciproc (VDW, Munich, Germany)器械根管预备后的细菌和硬组织残余推出根尖孔的水平及减少根管内细菌的差异。

这篇研究的目的是通过万用分析法比较经XP-endo Shaper (FKG Dentaire, La Chaux-de-Fonds, Switzerland)或Reciproc (VDW, Munich, Germany)器械根管预备后的细菌和硬组织残余推出根尖孔的水平及减少根管内细菌的差异。

研究将粪肠球菌定殖于拔除的上颌磨牙远颊根内,并按照根管预备系统的不同随机分为2组:XP-endo Shaper或Reciproc器械。构建一个可以模拟包裹支撑牙根并能够收集预备过程中推出根尖孔碎屑的根尖组织,将牙齿包埋其中。预备过程中使用生理盐水进行冲洗,整个操作过程在37°C下进行。在根管预备前后提取根管内样本的DNA,并通过实时定量聚合酶链式反应检测粪肠球菌的含量。通过micro-CT影像分析推出根尖孔碎屑的体积。另外,提取推出根尖孔碎屑的DNA,也通过实时定量聚合酶链式反应进行检测。

结果显示,经XP-endo Shaper机械预备后,根管内细菌的含量显著减少(P < .001)。尽管2种器械推出根尖孔碎屑的量相似(P > .05),但是Reciproc预备后推出根尖孔细菌的含量要明显低于XP-endo Shaper (P < .001)。而推出根尖孔的细菌含量与碎屑之间没有明显的相关性。

结论:尽管Reciproc推出根尖孔的细菌数量低,但是XP-endo Shaper对根管内细菌的减少作用显著。另外,2种技术推出根尖孔硬组织碎屑的体积相似。

原始出处:

Alves FRF, Paiva PL, et al. Bacteria and Hard Tissue Debris Extrusion and Intracanal Bacterial Reduction Promoted by XP-endo Shaper and Reciproc Instruments. J Endod. 2018 Jun 1. pii: S0099-2399(18)30245-0. doi: 10.1016/j.joen.2018.04.007.

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    2018-11-30 linlin2312
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    2018-12-15 feather89
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    2018-06-16 sunylz

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