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Article: The influence of the modification of etched bovine dentin on bond strengths

TitleThe influence of the modification of etched bovine dentin on bond strengths
Authors
KeywordsChemicals And Cas Registry Numbers
Issue Date2000
PublisherElsevier Inc. The Journal's web site is located at http://www.elsevier.com/locate/dental
Citation
Dental Materials, 2000, v. 16 n. 4, p. 255-265 How to Cite?
AbstractObjective: The aim of this study was to modify demineralized bovine dentin surfaces by application of either 12.5% sodium hypochlorite (NaOCl), or 0.1% (w/w) Type I collagenase, after conditioning with phosphoric acid, to observe the demineralized surface and to investigate the effect on tensile bond strength. Methods: The NaOCl was applied to etched dentin for 30 s, 1 or 2 min and the collagenase for 1, 3 or 6 h. A control group was used without NaOCl or collagenase treatment. Prior to bonding, treated surfaces were examined using an Atomic Force Microscope (AFM). A 2.3 mm diameter area of dentin was conditioned, treated and bonded with either One Coat Bond or Single Bond following each manufacturer's instructions, and a resin composite rod attached. Bonds were stressed in tension at a rate of 1 mm/min until failure. Mean bond strengths were calculated (MPa) and mode of failure was determined by observation at 20 × magnification. Results were analyzed using multiple regression analysis and LSD test at the 95% level of confidence (n = 12). Results: AFM results showed progressive changes of the surface collagen as the treatment time of NaOCl or collagenase increased. For both bonding systems, the bond strengths of 1 min NaOCl and 3 h collagenase treatments were significantly higher than the control or other treatment groups (p < 0.05). Bond failure consisted of mostly adhesive failure between dentin and resin combined with small regions exhibiting cohesive failure of resin. Significance: Bond strengths were not dependent on the thickness of the hybrid layer, but rather quality of the hybrid layer. © 2000 Academy of Dental Materials. Published by Elsevier Science Ltd. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/90614
ISSN
2015 Impact Factor: 3.931
2015 SCImago Journal Rankings: 1.339
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorPhrukkanon, Sen_HK
dc.contributor.authorBurrow, MFen_HK
dc.contributor.authorHartley, PGen_HK
dc.contributor.authorTyas, MJen_HK
dc.date.accessioned2010-09-17T10:05:42Z-
dc.date.available2010-09-17T10:05:42Z-
dc.date.issued2000en_HK
dc.identifier.citationDental Materials, 2000, v. 16 n. 4, p. 255-265en_HK
dc.identifier.issn0109-5641en_HK
dc.identifier.urihttp://hdl.handle.net/10722/90614-
dc.description.abstractObjective: The aim of this study was to modify demineralized bovine dentin surfaces by application of either 12.5% sodium hypochlorite (NaOCl), or 0.1% (w/w) Type I collagenase, after conditioning with phosphoric acid, to observe the demineralized surface and to investigate the effect on tensile bond strength. Methods: The NaOCl was applied to etched dentin for 30 s, 1 or 2 min and the collagenase for 1, 3 or 6 h. A control group was used without NaOCl or collagenase treatment. Prior to bonding, treated surfaces were examined using an Atomic Force Microscope (AFM). A 2.3 mm diameter area of dentin was conditioned, treated and bonded with either One Coat Bond or Single Bond following each manufacturer's instructions, and a resin composite rod attached. Bonds were stressed in tension at a rate of 1 mm/min until failure. Mean bond strengths were calculated (MPa) and mode of failure was determined by observation at 20 × magnification. Results were analyzed using multiple regression analysis and LSD test at the 95% level of confidence (n = 12). Results: AFM results showed progressive changes of the surface collagen as the treatment time of NaOCl or collagenase increased. For both bonding systems, the bond strengths of 1 min NaOCl and 3 h collagenase treatments were significantly higher than the control or other treatment groups (p < 0.05). Bond failure consisted of mostly adhesive failure between dentin and resin combined with small regions exhibiting cohesive failure of resin. Significance: Bond strengths were not dependent on the thickness of the hybrid layer, but rather quality of the hybrid layer. © 2000 Academy of Dental Materials. Published by Elsevier Science Ltd. All rights reserved.en_HK
dc.languageengen_HK
dc.publisherElsevier Inc. The Journal's web site is located at http://www.elsevier.com/locate/dentalen_HK
dc.relation.ispartofDental Materialsen_HK
dc.subjectChemicals And Cas Registry Numbersen_HK
dc.subject.meshAcid Etching, Dental - methodsen_HK
dc.subject.meshAdhesivenessen_HK
dc.subject.meshAnimalsen_HK
dc.subject.meshBisphenol A-Glycidyl Methacrylate - chemistryen_HK
dc.subject.meshCattleen_HK
dc.subject.meshCollagenases - pharmacologyen_HK
dc.subject.meshComposite Resins - chemistryen_HK
dc.subject.meshConfidence Intervalsen_HK
dc.subject.meshDental Bondingen_HK
dc.subject.meshDentin - drug effects - ultrastructureen_HK
dc.subject.meshMaterials Testingen_HK
dc.subject.meshMicroscopy, Atomic Forceen_HK
dc.subject.meshMicroscopy, Electron, Scanningen_HK
dc.subject.meshPhosphoric Acids - administration & dosageen_HK
dc.subject.meshRegression Analysisen_HK
dc.subject.meshSilicon Dioxideen_HK
dc.subject.meshSodium Hypochlorite - pharmacologyen_HK
dc.subject.meshSolvents - pharmacologyen_HK
dc.subject.meshStatistics, Nonparametricen_HK
dc.subject.meshStress, Mechanicalen_HK
dc.subject.meshSurface Propertiesen_HK
dc.subject.meshTensile Strengthen_HK
dc.subject.meshTime Factorsen_HK
dc.subject.meshZirconiumen_HK
dc.titleThe influence of the modification of etched bovine dentin on bond strengthsen_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.pmid10831780-
dc.identifier.scopuseid_2-s2.0-0034230980en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0034230980&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume16en_HK
dc.identifier.issue4en_HK
dc.identifier.spage255en_HK
dc.identifier.epage265en_HK
dc.identifier.isiWOS:000087467700004-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridPhrukkanon, S=8837113100en_HK
dc.identifier.scopusauthoridBurrow, MF=7005876730en_HK
dc.identifier.scopusauthoridHartley, PG=7103232443en_HK
dc.identifier.scopusauthoridTyas, MJ=7006088443en_HK

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