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Article: Morphological study of demineralized dentine after caries removal using two different methods

TitleMorphological study of demineralized dentine after caries removal using two different methods
Authors
KeywordsChemicals And Cas Registry Numbers
Issue Date2002
PublisherWiley-Blackwell Publishing Ltd.. The Journal's web site is located at http://www.wiley.com/bw/journal.asp?ref=0045-0421
Citation
Australian Dental Journal, 2002, v. 47 n. 2, p. 116-122 How to Cite?
AbstractBackground: Caries-affected dentine is the usual substrate bonded to in everyday clinical practice. The first step for most of the current dentine adhesive systems is etching or conditioning. It is therefore important to understand the effect of etchant/conditioner on caries-affected dentine. Methods: Twelve extracted carious permanent molars were examined. Six teeth had caries removed using burs after staining with a caries detector dye, and caries from the other six was removed using Carisolv™. After caries removal, three teeth from each group were left untreated. The remaining teeth were sectioned to obtain two normal dentine samples and two caries-affected dentine samples from each tooth. One half of the normal dentine samples and one half of the caries-affected dentine samples were treated with 35 per cent phosphoric acid, and the remaining samples were treated with 20 per cent polyacrylic acid/3 per cent aluminium chloride. The samples were observed using field emission scanning electron microscopy (FE-SEM). Results: Phosphoric acid treated samples showed more obvious intertubular dentine microporosity and greater depth of demineralization in caries-affected dentine. Polyacrylic acid treated samples showed some residual smear layer. However, the peritubular and intertubular collagen network was easily observed in Carisolv™ treated dentine. The depth of demineralization was not as distinct as that of the phosphoric treated samples. Conclusions: From this study it was shown that etched 'normal' dentine and etched caries-affected dentine had different surface appearances. Furthermore, the two caries removal techniques resulted in different caries-affected dentine surfaces after acid treatment that may influence the longevity of bonds from adhesive restorative materials.
Persistent Identifierhttp://hdl.handle.net/10722/90721
ISSN
2015 Impact Factor: 1.272
2015 SCImago Journal Rankings: 0.482
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorSakoolnamarka, Ren_HK
dc.contributor.authorBurrow, MFen_HK
dc.contributor.authorKubo, Sen_HK
dc.contributor.authorTyas, MJen_HK
dc.date.accessioned2010-09-17T10:07:18Z-
dc.date.available2010-09-17T10:07:18Z-
dc.date.issued2002en_HK
dc.identifier.citationAustralian Dental Journal, 2002, v. 47 n. 2, p. 116-122en_HK
dc.identifier.issn0045-0421en_HK
dc.identifier.urihttp://hdl.handle.net/10722/90721-
dc.description.abstractBackground: Caries-affected dentine is the usual substrate bonded to in everyday clinical practice. The first step for most of the current dentine adhesive systems is etching or conditioning. It is therefore important to understand the effect of etchant/conditioner on caries-affected dentine. Methods: Twelve extracted carious permanent molars were examined. Six teeth had caries removed using burs after staining with a caries detector dye, and caries from the other six was removed using Carisolv™. After caries removal, three teeth from each group were left untreated. The remaining teeth were sectioned to obtain two normal dentine samples and two caries-affected dentine samples from each tooth. One half of the normal dentine samples and one half of the caries-affected dentine samples were treated with 35 per cent phosphoric acid, and the remaining samples were treated with 20 per cent polyacrylic acid/3 per cent aluminium chloride. The samples were observed using field emission scanning electron microscopy (FE-SEM). Results: Phosphoric acid treated samples showed more obvious intertubular dentine microporosity and greater depth of demineralization in caries-affected dentine. Polyacrylic acid treated samples showed some residual smear layer. However, the peritubular and intertubular collagen network was easily observed in Carisolv™ treated dentine. The depth of demineralization was not as distinct as that of the phosphoric treated samples. Conclusions: From this study it was shown that etched 'normal' dentine and etched caries-affected dentine had different surface appearances. Furthermore, the two caries removal techniques resulted in different caries-affected dentine surfaces after acid treatment that may influence the longevity of bonds from adhesive restorative materials.en_HK
dc.languageengen_HK
dc.publisherWiley-Blackwell Publishing Ltd.. The Journal's web site is located at http://www.wiley.com/bw/journal.asp?ref=0045-0421en_HK
dc.relation.ispartofAustralian Dental Journalen_HK
dc.subjectChemicals And Cas Registry Numbersen_HK
dc.subject.meshAcid Etching, Dental - methodsen_HK
dc.subject.meshAcrylic Resins - administration & dosageen_HK
dc.subject.meshAluminum Compounds - administration & dosageen_HK
dc.subject.meshAstringents - administration & dosageen_HK
dc.subject.meshChlorides - administration & dosageen_HK
dc.subject.meshCollagen - ultrastructureen_HK
dc.subject.meshColoring Agents - diagnostic useen_HK
dc.subject.meshDental Bondingen_HK
dc.subject.meshDental Caries - pathology - therapyen_HK
dc.subject.meshDental Cavity Preparation - instrumentation - methodsen_HK
dc.subject.meshDentin - ultrastructureen_HK
dc.subject.meshDentin-Bonding Agents - chemistryen_HK
dc.subject.meshGlutamic Acid - therapeutic useen_HK
dc.subject.meshHumansen_HK
dc.subject.meshLeucine - therapeutic useen_HK
dc.subject.meshLysine - therapeutic useen_HK
dc.subject.meshMicroscopy, Electron, Scanningen_HK
dc.subject.meshPhosphoric Acids - administration & dosageen_HK
dc.subject.meshPorosityen_HK
dc.subject.meshSmear Layeren_HK
dc.titleMorphological study of demineralized dentine after caries removal using two different methodsen_HK
dc.typeArticleen_HK
dc.identifier.emailBurrow, MF:mfburr58@hku.hken_HK
dc.identifier.authorityBurrow, MF=rp01306en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.pmid12139264en_HK
dc.identifier.scopuseid_2-s2.0-0036616171en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0036616171&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume47en_HK
dc.identifier.issue2en_HK
dc.identifier.spage116en_HK
dc.identifier.epage122en_HK
dc.identifier.isiWOS:000176494300006-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridSakoolnamarka, R=6508034450en_HK
dc.identifier.scopusauthoridBurrow, MF=7005876730en_HK
dc.identifier.scopusauthoridKubo, S=35497619500en_HK
dc.identifier.scopusauthoridTyas, MJ=7006088443en_HK

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