Evaluation of the interaction between sodium hypochlorite and chlorhexidine gluconate and its effect on root dentin
Evaluation of the interaction between sodium hypochlorite and chlorhexidine gluconate and its effect on root dentin
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DOI：
10.1016/j.joen.2007.11.006
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发表时间：
2008-02-01
影响因子：
4.2
通讯作者：
Mitchell, John C.
中科院分区：
文献类型：
--
作者：
Bui, Tung B.;Baumgartner, J. Craig;Mitchell, John C.
次氯酸钠（NaOCl）和氯己定（CHX）的组合形成沉淀。本研究的目的是通过环境扫描电子显微镜（ESEM）和计算机程序（Photoshop CS2）来评价用NaOCl和CHX组合冲洗根管对根本质和牙本质小管的影响。44个提取的单根人类牙齿的仪器和冲洗与NaOCl和CHX产生沉淀。用环境扫描电镜（ESEM）观察根管表面。测定剩余碎片的量和通畅小管的数量。阴性对照组和实验组之间的残留碎片无显著差异。与阴性对照组相比，实验组中的通畅小管明显较少。NaOCl/CHX沉淀倾向于阻塞牙本质小管。在进一步研究这种沉淀物之前，用NaOCl和CHX冲洗时应谨慎。
The combination of sodium hypochlorite (NaOCl) and chlorhexidine (CHX) forms a precipitate. The aim of this study was to evaluate the effect of irrigating root canals with a combination of NaOCl and CHX on root dentin and dentinal tubules by using the environmental scanning electron microscope (ESEM) and a computer program (Photoshop CS2). Forty-four extracted single-rooted human teeth were instrumented and irrigated with both NaOCl and CHX to produce a precipitate. Root canal surfaces were analyzed with the ESEM. The amount of remaining debris and number of patent tubules were determined. There were no significant differences in remaining debris between the negative control group and the experimental groups. There were significantly fewer patent tubules in the experimental groups when compared with the negative control group. The NaOCl/CHX precipitate tends to occlude the dentinal tubules. Until this precipitate is studied further, caution should be exercised when irrigating with NaOCl and CHX.