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Article: Effect of pulpal pressure on the microtensile bond strength of luting resin cements to human dentin

TitleEffect of pulpal pressure on the microtensile bond strength of luting resin cements to human dentin
Authors
KeywordsFractography
Microtensile bond strength
Permeability
Pulpal pressure
Resin cement
SEM
Issue Date2009
PublisherElsevier Inc. The Journal's web site is located at http://www.elsevier.com/locate/dental
Citation
Dental Materials, 2009, v. 25 n. 1, p. 58-66 How to Cite?
AbstractObjectives: The objectives of this study were to examine the effect of pulpal pressure on the microtensile bond strength (mTBS) of luting resin cements to human dentin and the permeability of dentin surfaces pre-treated with an adhesive and a self-etching primer. Methods: Cylindrical composite blocks were luted with resin cements (RelyX ARC, 3M ESPE: ARC; Panavia F, Kuraray Medical Inc.: PF; RelyX Unicem, 3M ESPE: UN) in the absence or presence of simulated pulpal pressure. The application of Adper Single Bond 2 (3M ESPE) and ED primer 2.0 (Kuraray) was performed under 0 cm H2O. After each resin cement was applied, the pulpal pressure group was subjected to 20 cm H2O of hydrostatic pressure for 10 min during the initial setting period. Testing for mTBS was performed on 0.9 mm × 0.9 mm sectioned beams after 24 h water-storage. Scanning electron microscopy was performed to investigate the fractured surfaces after mTBS testing and additional dentin surfaces that were treated by an etchant, ED primer 2.0 and UN. Fluid permeability was measured on dentin surfaces that were applied with Adper Single Bond 2 and ED primer 2.0. Results: Application of pulpal pressure reduced mTBS significantly in groups ARC and PF. Porous bonding interfaces due to water permeability through the cured adhesive were observed on fractured surfaces. Dentin surfaces that were applied with the adhesive and the primer were more permeable than smear layer-covered dentin. The mTBS of UN was significantly lower than ARC and PF regardless of the absence/presence of pulpal pressure. Significance: Fluid permeation during the initial setting period deteriorated the bonding quality of resin cements. © 2008 Academy of Dental Materials.
Persistent Identifierhttp://hdl.handle.net/10722/154553
ISSN
2015 Impact Factor: 3.931
2015 SCImago Journal Rankings: 1.339
ISI Accession Number ID
Funding AgencyGrant Number
Faculty of Dentistry
University of Hong Kong
10204604/07840/08004/324/01
Funding Information:

This work was supported by grant 10204604/07840/08004/324/01, Faculty of Dentistry, the University of Hong Kong. Panavia F 2.0, ED primer 2.0 and ESTENIA C&B were generous gifts from Kuraray Medical Inc. RelyX ARC, RelyX Unicem and Adper Single Bond 2 were generously supplied by 3M ESPE. The authors thank Mrs. Zinnia Ng and Mrs. Michelle Barnes for secretarial support.

References

 

DC FieldValueLanguage
dc.contributor.authorHiraishi, Nen_US
dc.contributor.authorYiu, CKYen_US
dc.contributor.authorKing, NMen_US
dc.contributor.authorTay, FRen_US
dc.date.accessioned2012-08-08T08:26:08Z-
dc.date.available2012-08-08T08:26:08Z-
dc.date.issued2009en_US
dc.identifier.citationDental Materials, 2009, v. 25 n. 1, p. 58-66en_US
dc.identifier.issn0109-5641en_US
dc.identifier.urihttp://hdl.handle.net/10722/154553-
dc.description.abstractObjectives: The objectives of this study were to examine the effect of pulpal pressure on the microtensile bond strength (mTBS) of luting resin cements to human dentin and the permeability of dentin surfaces pre-treated with an adhesive and a self-etching primer. Methods: Cylindrical composite blocks were luted with resin cements (RelyX ARC, 3M ESPE: ARC; Panavia F, Kuraray Medical Inc.: PF; RelyX Unicem, 3M ESPE: UN) in the absence or presence of simulated pulpal pressure. The application of Adper Single Bond 2 (3M ESPE) and ED primer 2.0 (Kuraray) was performed under 0 cm H2O. After each resin cement was applied, the pulpal pressure group was subjected to 20 cm H2O of hydrostatic pressure for 10 min during the initial setting period. Testing for mTBS was performed on 0.9 mm × 0.9 mm sectioned beams after 24 h water-storage. Scanning electron microscopy was performed to investigate the fractured surfaces after mTBS testing and additional dentin surfaces that were treated by an etchant, ED primer 2.0 and UN. Fluid permeability was measured on dentin surfaces that were applied with Adper Single Bond 2 and ED primer 2.0. Results: Application of pulpal pressure reduced mTBS significantly in groups ARC and PF. Porous bonding interfaces due to water permeability through the cured adhesive were observed on fractured surfaces. Dentin surfaces that were applied with the adhesive and the primer were more permeable than smear layer-covered dentin. The mTBS of UN was significantly lower than ARC and PF regardless of the absence/presence of pulpal pressure. Significance: Fluid permeation during the initial setting period deteriorated the bonding quality of resin cements. © 2008 Academy of Dental Materials.en_US
dc.languageengen_US
dc.publisherElsevier Inc. The Journal's web site is located at http://www.elsevier.com/locate/dentalen_US
dc.relation.ispartofDental Materialsen_US
dc.rightsDental Materials. Copyright © Elsevier Inc.-
dc.subjectFractography-
dc.subjectMicrotensile bond strength-
dc.subjectPermeability-
dc.subjectPulpal pressure-
dc.subjectResin cement-
dc.subjectSEM-
dc.subject.meshAcid Etching, Dental - Methodsen_US
dc.subject.meshBisphenol A-Glycidyl Methacrylate - Chemistryen_US
dc.subject.meshComposite Resins - Chemistryen_US
dc.subject.meshDental Bondingen_US
dc.subject.meshDental Pulp - Physiologyen_US
dc.subject.meshDentin - Ultrastructureen_US
dc.subject.meshDentin Permeability - Physiologyen_US
dc.subject.meshDentin-Bonding Agents - Chemistryen_US
dc.subject.meshDentinal Fluid - Physiologyen_US
dc.subject.meshHumansen_US
dc.subject.meshHydrostatic Pressureen_US
dc.subject.meshMaterials Testingen_US
dc.subject.meshMethacrylates - Chemistryen_US
dc.subject.meshMicroscopy, Electron, Scanningen_US
dc.subject.meshPolyethylene Glycols - Chemistryen_US
dc.subject.meshPolymethacrylic Acids - Chemistryen_US
dc.subject.meshResin Cements - Chemistryen_US
dc.subject.meshSmear Layeren_US
dc.subject.meshStress, Mechanicalen_US
dc.subject.meshTensile Strengthen_US
dc.subject.meshTime Factorsen_US
dc.subject.meshWater - Chemistryen_US
dc.titleEffect of pulpal pressure on the microtensile bond strength of luting resin cements to human dentinen_US
dc.typeArticleen_US
dc.identifier.emailYiu, CKY:ckyyiu@hkucc.hku.hken_US
dc.identifier.emailKing, NM:hhdbknm@hkucc.hku.hken_US
dc.identifier.authorityYiu, CKY=rp00018en_US
dc.identifier.authorityKing, NM=rp00006en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1016/j.dental.2008.05.005en_US
dc.identifier.pmid18573523-
dc.identifier.scopuseid_2-s2.0-57349100315en_US
dc.identifier.hkuros154117-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-57349100315&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume25en_US
dc.identifier.issue1en_US
dc.identifier.spage58en_US
dc.identifier.epage66en_US
dc.identifier.isiWOS:000262536400010-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridHiraishi, N=8925934400en_US
dc.identifier.scopusauthoridYiu, CKY=7007115156en_US
dc.identifier.scopusauthoridKing, NM=7201762850en_US
dc.identifier.scopusauthoridTay, FR=7102091962en_US

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