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dc.contributor.authorOrnnicha Thanatvarakornen_US
dc.contributor.authorMasatoshi Nakajimaen_US
dc.contributor.authorTaweesak Prasansuttipornen_US
dc.contributor.authorShizuko Ichinoseen_US
dc.contributor.authorRichard M. Foxtonen_US
dc.contributor.authorJunji Tagamien_US
dc.date.accessioned2018-09-04T09:49:26Z-
dc.date.available2018-09-04T09:49:26Z-
dc.date.issued2014-03-01en_US
dc.identifier.issn03005712en_US
dc.identifier.other2-s2.0-84900671622en_US
dc.identifier.other10.1016/j.jdent.2013.11.026en_US
dc.identifier.urihttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84900671622&origin=inwarden_US
dc.identifier.urihttp://cmuir.cmu.ac.th/jspui/handle/6653943832/53449-
dc.description.abstractObjectives: This study aimed to investigate deproteinizing effect of sodium-hypochlorite (NaOCl) and mild acidic hypochlorous-acid (HOCl) pretreatment on smear layer-covered dentine and to evaluate their effects on morphological characteristics of resin-dentine interface with self-etch adhesive. Methods: Human coronal-dentine discs with standardized smear layer were pretreated with 6% NaOCl or 50 ppm HOCl for 15 s or 30 s. Their deproteinizing effects at the treated smear layer-covered dentine surfaces were determined by the measurement of amide:phosphate ratio using ATR-FTIR analysis. In addition, using TEM, micromorphological alterations of hybridized complex and nanoleakage expression were evaluated at the interface of a self-etch adhesive (Clearfil SE Bond) to the pretreated dentine surface with or without subsequent application of a reducing agent (p-Toluenesulfinic acid salt; Accel®). Results: Both pretreatments of NaOCl and HOCl significantly reduced the amide:phosphate ratio as compared with the no-pretreated group (p < 0.05), coincident with the elimination of the hybridized smear layer on their bonded interfaces. Nanoleakage within the hybrid layer was found in the no-pretreated and NaOCl-pretreated groups, whereas the subsequent reducing agent application changed the reticular nanoleakage to spotted type. HOCl-pretreated groups showed less nanoleakage expression in a spotted pattern, regardless of reducing agent application. Conclusions: NaOCl and HOCl solutions could remove the organic component on the smear layer-covered dentine, which could eliminate the hybridized smear layer created by self-etch adhesive, leading to the reduction of nanoleakage expression within hybrid layer. Clinical significance Smear layer deproteinizing could modify dentine surface, giving an appropriate substrate for bonding to self-etch adhesive system. © 2013 Elsevier Ltd. All rights reserved.en_US
dc.subjectDentistryen_US
dc.titleEffect of smear layer deproteinizing on resin-dentine interface with self-etch adhesiveen_US
dc.typeJournalen_US
article.title.sourcetitleJournal of Dentistryen_US
article.volume42en_US
article.stream.affiliationsTokyo Medical and Dental Universityen_US
article.stream.affiliationsChiang Mai Universityen_US
article.stream.affiliationsGuy's and St Thomas' NHS Foundation Trusten_US
Appears in Collections:CMUL: Journal Articles

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