This study aimed to evaluate the characterization of chemical interaction of root canal irrigants on the surface of EndoSequence root repair materials using spectroscopy analysis. Round discs of putty and paste were obtained and immersed in saline, sodium hypochlorite (NaOCl), or chlorhexidine. On the surface of chlorhexidine treated putty, diffuse red pigmentation was detected by Raman analysis and diffuse black pigmentation having unusual needle‐like shaped crystals was detected by scanning electron microscopy. This pigmentation formed from nitrogen‐rich compounds detected by Raman, infrared spectroscopy, and X‐ray diffraction analysis. Mineral/amide ratios were increased by NaOCl and significantly decreased by chlorhexidine. Carbonate/phosphate ratios showed no significant changes by NaOCl, while a significant decrease by chlorhexidine. A full half of maximum width_Raman of the phosphate band was significantly increased by NaOCl, while decreased by chlorhexidine. In conclusion; nitrogen‐rich compounds produced by chlorhexidine altered the surface morphology of the putty without crystallinity reduction. However, NaOCl reduced the organic fillers that affected its binding to phosphate ions. This reaction affects the chemical properties and perfection of root repair material. The clinicians should be aware of different irrigants to be used after repairing the perforation.

中文翻译：

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灌注-内序根修复材料表面相互作用的形态学和化学分析。

本研究旨在使用光谱分析评估根管冲洗剂在 EndoSequence 根修复材料表面上的化学相互作用的表征。获得油灰和糊状物的圆盘并将其浸入盐水、次氯酸钠 (NaOCl) 或氯己定中。在氯己定处理的腻子表面，拉曼分析检测到弥漫性红色色素沉着，扫描电子显微镜检测到具有异常针状晶体的弥漫性黑色色素沉着。这种色素沉着是由通过拉曼、红外光谱和 X 射线衍射分析检测到的富氮化合物形成的。NaOCl 会增加矿物质/酰胺比率，而氯己定会显着降低矿物质/酰胺比率。NaOCl 对碳酸盐/磷酸盐比率没有显着变化，而氯己定则显着降低。NaOCl 显着增加磷酸盐带的_拉曼，而氯己定则降低。综上所述; 氯己定产生的富氮化合物改变了腻子的表面形态，而没有降低结晶度。然而，NaOCl 减少了影响其与磷酸根离子结合的有机填料。这种反应会影响根部修复材料的化学性质和完善程度。临床医生应了解修补穿孔后使用的不同冲洗液。