J Endod:表面分析法评估SmearOFF作为最终冲洗液对牙本质表面的影响

2018-10-29 lishiting MedSci原创

SmearOFF (Vista Dental Products, Racine, WI)是一种包含了氯己定(CHX), EDTA和表面活化剂的冲洗溶液。这篇研究的目的是为了检测SmearOFF与次氯酸钠(NaOCl)之间的化学作用对牙本质表面的影响,特别是是否会引起沉淀物或/和parachloroanaline (PCA)形成。

SmearOFF (Vista Dental Products, Racine, WI)是一种包含了氯己定(CHX), EDTA和表面活化剂的冲洗溶液。这篇研究的目的是为了检测SmearOFF与次氯酸钠(NaOCl)之间的化学作用对牙本质表面的影响,特别是是否会引起沉淀物或/和parachloroanaline (PCA)形成。

研究将人上颌磨牙的牙本质块包埋在树脂中。使用超低温切片机垂直定向牙本质小管。将牙本质块分为2组:CHX组, 冲洗液使用6% NaOCl, 17% EDTA, 6% NaOCl和2% CHX;SmearOFF组, 冲洗液使用6% NaOCl和SmearOFF。采用飞行时间二次离子质谱和X射线光电子能谱分析牙本质表面以检测牙本质表面是否形成了沉淀物或/和PCA。

结果显示,CHX组牙本质表面上的牙本质小管形成PCA沉淀物和阻塞。SmearOFF组的牙本质表面未检测到沉淀物或PCA。

结论:SmearOFF和NaOCl之间的相互作用并不会在牙本质表面形成沉淀物或PCA。

原始出处:

Piperidou M, Sodhi RNS, et al. Effects of Final Irrigation with SmearOFF on the Surface of Dentin Using Surface Analytical Methods. J Endod. 2018 Sep 25. pii: S0099-2399(18)30515-6. doi: 10.1016/j.joen.2018.07.019.

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