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Article: Interaction of resin-modified glass-ionomer cements with moist dentine

TitleInteraction of resin-modified glass-ionomer cements with moist dentine
Authors
KeywordsDentine
Interface
Permeability
Resin-modified glass-ionomer cement
Water movement
Issue Date2004
PublisherElsevier Ltd. The Journal's web site is located at http://www.elsevier.com/locate/jdent
Citation
Journal Of Dentistry, 2004, v. 32 n. 7, p. 521-530 How to Cite?
AbstractObjectives. The objective of this study was to report on a novel phenomenon that occurs when resin-modified glass-ionomer cements (RMGICs) are bonded to moist human dentine. Methods. Dentine surfaces from extracted third molars were abraded with 180-grit SiC paper. Ten teeth were prepared for each of the two RMGICs tested (Fuji II LC, GC Corp. and Photac-Fil Quick, 3M ESPE). RMGIC buildups were made according to the manufacturers' instructions. After storage at 37°C, 100% humidity for 24 h, the bonded specimens were cut occlusogingivally into 0.9×0.9 mm beams. Dentine surfaces bonded with the two RMGICs were examined along the fractured RMGIC/dentine interfaces. Additional beams fractured within the RMGICS and at 3 mm away from the interfaces were used as controls. The fractured beams were examined using scanning electron microscopy (SEM), field emission-environmental SEM (FE-ESEM) and transmission electron microscopy (TEM). Results. SEM and FE-ESEM revealed numerous solid spherical bodies along the RMGIC/dentine interfaces. By contrast, no spherical bodies could be identified within the RMGIC fractured 3 mm distant from the bonded interface. TEM and energy dispersive X-ray analyses performed on carbon-coated ultrathin sections showed that these solid spherical bodies consisted of a thin aluminum and silicon-rich periphery and an amorphous hydrocarbon core within the air voids of the original resin matrix. Conclusion. The spherical bodies probably represent a continuation of GI reaction and poly(HEMA) hydrogel formation that results from water diffusion from the underlying moist dentine. Their existence provides evidence for the permeation of water through RMGIC/dentine interfaces. © 2004 Published by Elsevier Ltd.
Persistent Identifierhttp://hdl.handle.net/10722/66263
ISSN
2015 Impact Factor: 3.109
2015 SCImago Journal Rankings: 1.029
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorYiu, CKYen_HK
dc.contributor.authorTay, FRen_HK
dc.contributor.authorKing, NMen_HK
dc.contributor.authorPashley, DHen_HK
dc.contributor.authorCarvalho, RMen_HK
dc.contributor.authorCarrilho, MROen_HK
dc.date.accessioned2010-09-06T05:44:55Z-
dc.date.available2010-09-06T05:44:55Z-
dc.date.issued2004en_HK
dc.identifier.citationJournal Of Dentistry, 2004, v. 32 n. 7, p. 521-530en_HK
dc.identifier.issn0300-5712en_HK
dc.identifier.urihttp://hdl.handle.net/10722/66263-
dc.description.abstractObjectives. The objective of this study was to report on a novel phenomenon that occurs when resin-modified glass-ionomer cements (RMGICs) are bonded to moist human dentine. Methods. Dentine surfaces from extracted third molars were abraded with 180-grit SiC paper. Ten teeth were prepared for each of the two RMGICs tested (Fuji II LC, GC Corp. and Photac-Fil Quick, 3M ESPE). RMGIC buildups were made according to the manufacturers' instructions. After storage at 37°C, 100% humidity for 24 h, the bonded specimens were cut occlusogingivally into 0.9×0.9 mm beams. Dentine surfaces bonded with the two RMGICs were examined along the fractured RMGIC/dentine interfaces. Additional beams fractured within the RMGICS and at 3 mm away from the interfaces were used as controls. The fractured beams were examined using scanning electron microscopy (SEM), field emission-environmental SEM (FE-ESEM) and transmission electron microscopy (TEM). Results. SEM and FE-ESEM revealed numerous solid spherical bodies along the RMGIC/dentine interfaces. By contrast, no spherical bodies could be identified within the RMGIC fractured 3 mm distant from the bonded interface. TEM and energy dispersive X-ray analyses performed on carbon-coated ultrathin sections showed that these solid spherical bodies consisted of a thin aluminum and silicon-rich periphery and an amorphous hydrocarbon core within the air voids of the original resin matrix. Conclusion. The spherical bodies probably represent a continuation of GI reaction and poly(HEMA) hydrogel formation that results from water diffusion from the underlying moist dentine. Their existence provides evidence for the permeation of water through RMGIC/dentine interfaces. © 2004 Published by Elsevier Ltd.en_HK
dc.languageengen_HK
dc.publisherElsevier Ltd. The Journal's web site is located at http://www.elsevier.com/locate/jdenten_HK
dc.relation.ispartofJournal of Dentistryen_HK
dc.rightsJournal of dentistry. Copyright © Elsevier Ltd.en_HK
dc.subjectDentineen_HK
dc.subjectInterfaceen_HK
dc.subjectPermeabilityen_HK
dc.subjectResin-modified glass-ionomer cementen_HK
dc.subjectWater movementen_HK
dc.subject.meshAluminum - chemistryen_HK
dc.subject.meshCarbon Compounds, Inorganic - chemistryen_HK
dc.subject.meshDental Bondingen_HK
dc.subject.meshDentin - ultrastructureen_HK
dc.subject.meshDiffusionen_HK
dc.subject.meshElectron Probe Microanalysisen_HK
dc.subject.meshGlass Ionomer Cements - chemistryen_HK
dc.subject.meshHumansen_HK
dc.subject.meshHydrogel - chemistryen_HK
dc.subject.meshMicroscopy, Electronen_HK
dc.subject.meshMicroscopy, Electron, Scanningen_HK
dc.subject.meshPolyamines - chemistryen_HK
dc.subject.meshPolyhydroxyethyl Methacrylate - analogs & derivatives - chemistryen_HK
dc.subject.meshResin Cements - chemistryen_HK
dc.subject.meshResins, Synthetic - chemistryen_HK
dc.subject.meshSilicon - chemistryen_HK
dc.subject.meshSilicon Compounds - chemistryen_HK
dc.subject.meshStress, Mechanicalen_HK
dc.subject.meshSurface Propertiesen_HK
dc.subject.meshWater - chemistryen_HK
dc.titleInteraction of resin-modified glass-ionomer cements with moist dentineen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0300-5712&volume=32&spage=512&epage=530&date=2004&atitle=Interaction+of+resin-modified+glass-ionomer+cements+with+moist+dentine.en_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.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.jdent.2004.04.005en_HK
dc.identifier.pmid15304297-
dc.identifier.scopuseid_2-s2.0-4043064250en_HK
dc.identifier.hkuros114343en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-4043064250&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume32en_HK
dc.identifier.issue7en_HK
dc.identifier.spage521en_HK
dc.identifier.epage530en_HK
dc.identifier.isiWOS:000223574200003-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridYiu, CKY=7007115156en_HK
dc.identifier.scopusauthoridTay, FR=7102091962en_HK
dc.identifier.scopusauthoridKing, NM=7201762850en_HK
dc.identifier.scopusauthoridPashley, DH=35448600800en_HK
dc.identifier.scopusauthoridCarvalho, RM=7103357029en_HK
dc.identifier.scopusauthoridCarrilho, MRO=35591372600en_HK

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