Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.joen.2010.08.035
DC FieldValue
dc.titleEffects of concentrations and exposure times of sodium hypochlorite on dentin deproteination: Attenuated total reflection fourier transform infrared spectroscopy study
dc.contributor.authorHu, X.
dc.contributor.authorPeng, Y.
dc.contributor.authorSum, C.-P.
dc.contributor.authorLing, J.
dc.date.accessioned2016-06-01T10:24:00Z
dc.date.available2016-06-01T10:24:00Z
dc.date.issued2010-12
dc.identifier.citationHu, X., Peng, Y., Sum, C.-P., Ling, J. (2010-12). Effects of concentrations and exposure times of sodium hypochlorite on dentin deproteination: Attenuated total reflection fourier transform infrared spectroscopy study. Journal of Endodontics 36 (12) : 2008-2011. ScholarBank@NUS Repository. https://doi.org/10.1016/j.joen.2010.08.035
dc.identifier.issn00992399
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/124625
dc.description.abstractIntroduction: The purpose of this study was to quantitatively analyze the effects of different concentrations and exposure times of sodium hypochlorite (NaOCl) on dentin deproteination and to determine the suitable concentrations and exposure times to minimize the effects of deproteination on dentin. Methods: Intact human dentin slabs were treated with 0.5%, 1%, or 2.25% NaOCl for 1, 5, or 10 minutes. A 0.9% NaCl solution served as the control. To investigate the effect of NaOCl on the surface chemical changes to human dentin, the attenuated total reflection Fourier transform infrared (ATR-FTIR) spectroscopy technique was used to analyze the amide:phosphate ratio and carbonate:phosphate ratio. Results: The amide:phosphate ratio decreased significantly after NaOCl treatment as compared with the control group (p < 0.05). In the 0.5% NaOCl treatment group, the amide:phosphate ratio was significantly higher than that in the 1% and the 2.25% NaOCl treatment groups (p < 0.05). The different exposure times (1, 5, or 10 minutes) of NaOCl within the same concentration did not influence the amide:phosphate ratio (p > 0.05). NaOCl treatment did not affect the carbonate:phosphate ratio (p > 0.05). Conclusions: NaOCl, 0.5%, is recommended as the predominant concentration for routine use during root canal therapy to minimize any NaOCl-induced dentin deproteination. It is suggested that a prolonged exposure to low concentrations of NaOCl is less damaging to dentin in attempting to achieve antisepsis during instrumentation of root canal therapy. © 2010 American Association of Endodontists.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1016/j.joen.2010.08.035
dc.sourceScopus
dc.subjectAttenuated total reflection Fourier transform infrared
dc.subjectDentin deproteination
dc.subjectSodium hypochlorite
dc.typeArticle
dc.contributor.departmentRESTORATIVE DENTISTRY
dc.description.doi10.1016/j.joen.2010.08.035
dc.description.sourcetitleJournal of Endodontics
dc.description.volume36
dc.description.issue12
dc.description.page2008-2011
dc.description.codenJOEND
dc.identifier.isiut000285124400017
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