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Article: A nanoleakage perspective on bonding to oxidized dentin

TitleA nanoleakage perspective on bonding to oxidized dentin
Authors
KeywordsMicrotensile bond strength
Nanoleakage
Sodium ascorbate
Sodium hypochlorite
Ultrastructure
Issue Date2002
PublisherSage Publications, Inc.. The Journal's web site is located at http://www.sagepub.com/journalsProdDesc.nav?prodId=Journal201925
Citation
Journal Of Dental Research, 2002, v. 81 n. 9, p. 628-632 How to Cite?
AbstractThe mechanism responsible for sodium-hypochlorite-induced reduction in dentin bond strength and its reversal with reducing agents is unknown. This study examined the relationship between nanoleakage and reversal of compromised bonding to oxidized dentin. Acid-etched dentin was completely depleted of demineralized collagen matrix when sodium hypochlorite was used. Specimens were bonded with two single-bottle dentin adhesives. They were immersed in ammoniacal silver nitrate for 24 hrs before being processed for transmission electron microscopy. For both adhesives, tensile bond strengths of acid-etched dentin were significantly reduced after sodium hypochlorite treatment, but were reversed when sodium ascorbate was used. After sodium hypochlorite application, reticular nanoleakge patterns in hybrid layers were replaced by vertical, shag-carpet-like patterns along the demineralization front. This type of nanoleakage was completely eliminated after sodium ascorbate treatment with the materials tested. Residual sodium hypochlorite within the porosities of mineralized dentin may result in incomplete resin polymerization, and hence compromised bond strength.
Persistent Identifierhttp://hdl.handle.net/10722/53194
ISSN
2015 Impact Factor: 4.602
2015 SCImago Journal Rankings: 1.714
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorYiu, CKYen_HK
dc.contributor.authorGarcíaGodoy, Fen_HK
dc.contributor.authorTay, FRen_HK
dc.contributor.authorPashley, DHen_HK
dc.contributor.authorImazato, Sen_HK
dc.contributor.authorKing, NMen_HK
dc.contributor.authorLai, SCNen_HK
dc.date.accessioned2009-04-03T07:03:51Z-
dc.date.available2009-04-03T07:03:51Z-
dc.date.issued2002en_HK
dc.identifier.citationJournal Of Dental Research, 2002, v. 81 n. 9, p. 628-632en_HK
dc.identifier.issn0022-0345en_HK
dc.identifier.urihttp://hdl.handle.net/10722/53194-
dc.description.abstractThe mechanism responsible for sodium-hypochlorite-induced reduction in dentin bond strength and its reversal with reducing agents is unknown. This study examined the relationship between nanoleakage and reversal of compromised bonding to oxidized dentin. Acid-etched dentin was completely depleted of demineralized collagen matrix when sodium hypochlorite was used. Specimens were bonded with two single-bottle dentin adhesives. They were immersed in ammoniacal silver nitrate for 24 hrs before being processed for transmission electron microscopy. For both adhesives, tensile bond strengths of acid-etched dentin were significantly reduced after sodium hypochlorite treatment, but were reversed when sodium ascorbate was used. After sodium hypochlorite application, reticular nanoleakge patterns in hybrid layers were replaced by vertical, shag-carpet-like patterns along the demineralization front. This type of nanoleakage was completely eliminated after sodium ascorbate treatment with the materials tested. Residual sodium hypochlorite within the porosities of mineralized dentin may result in incomplete resin polymerization, and hence compromised bond strength.en_HK
dc.languageengen_HK
dc.publisherSage Publications, Inc.. The Journal's web site is located at http://www.sagepub.com/journalsProdDesc.nav?prodId=Journal201925en_HK
dc.relation.ispartofJournal of Dental Researchen_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.subjectMicrotensile bond strengthen_HK
dc.subjectNanoleakageen_HK
dc.subjectSodium ascorbateen_HK
dc.subjectSodium hypochloriteen_HK
dc.subjectUltrastructureen_HK
dc.subject.meshAcid Etching, Dentalen_HK
dc.subject.meshAscorbic Acid - chemistry - pharmacologyen_HK
dc.subject.meshCollagen - drug effects - ultrastructureen_HK
dc.subject.meshDental Bondingen_HK
dc.subject.meshDental Leakage - classification - pathologyen_HK
dc.subject.meshDentin - drug effects - ultrastructureen_HK
dc.subject.meshDentin-Bonding Agents - chemistryen_HK
dc.subject.meshHumansen_HK
dc.subject.meshMethacrylates - chemistryen_HK
dc.subject.meshMicroscopy, Electronen_HK
dc.subject.meshOxidants - chemistry - pharmacologyen_HK
dc.subject.meshPolymers - chemistryen_HK
dc.subject.meshReducing Agents - chemistry - pharmacologyen_HK
dc.subject.meshSilver Stainingen_HK
dc.subject.meshSodium Hypochlorite - chemistry - pharmacologyen_HK
dc.subject.meshStress, Mechanicalen_HK
dc.subject.meshTensile Strengthen_HK
dc.titleA nanoleakage perspective on bonding to oxidized dentinen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0022-0345&volume=81&issue=9&spage=628&epage=632&date=2002&atitle=A+nanoleakage+perspective+on+bonding+to+oxidized+dentinen_HK
dc.identifier.emailYiu, CKY: ckyyiu@hkucc.hku.hken_HK
dc.identifier.emailKing, NM: hhdbknm@hkucc.hku.hken_HK
dc.identifier.authorityYiu, CKY=rp00018en_HK
dc.identifier.authorityKing, NM=rp00006en_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.pmid12202645-
dc.identifier.scopuseid_2-s2.0-0036716841en_HK
dc.identifier.hkuros76129-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0036716841&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume81en_HK
dc.identifier.issue9en_HK
dc.identifier.spage628en_HK
dc.identifier.epage632en_HK
dc.identifier.isiWOS:000177823900011-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridYiu, CKY=7007115156en_HK
dc.identifier.scopusauthoridGarcíaGodoy, F=7101863410en_HK
dc.identifier.scopusauthoridTay, FR=7102091962en_HK
dc.identifier.scopusauthoridPashley, DH=35448600800en_HK
dc.identifier.scopusauthoridImazato, S=7006153614en_HK
dc.identifier.scopusauthoridKing, NM=7201762850en_HK
dc.identifier.scopusauthoridLai, SCN=7402937128en_HK

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