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Article: Effect of 2% chlorhexidine on dentin microtensile bond strengths and nanoleakage of luting cements

TitleEffect of 2% chlorhexidine on dentin microtensile bond strengths and nanoleakage of luting cements
Authors
KeywordsChlorhexidine
Dentine disinfectant
Microtensile bond strength
Nanoleakage
Resin cement
SEM
Issue Date2009
PublisherElsevier Ltd. The Journal's web site is located at http://www.elsevier.com/locate/jdent
Citation
Journal Of Dentistry, 2009, v. 37 n. 6, p. 440-448 How to Cite?
AbstractObjectives: The aim of this study was to investigate the effect of pre-treatment by chlorhexidine on the microtensile bond strength (mTBS) of resin cements and nanoleakage at the resin-dentine interfaces. Methods: Cylindrical composite blocks were luted to human dentine using resin cements (RelyX ARC, 3M ESPE: ARC; Panavia F, Kuraray Medical Inc.: PF; RelyX Unicem, 3M ESPE: UN) with/without pre-treatment by 2% chlorhexidine digluconate (CAVITY CLEANSER, Bisco, Inc., Schaumburg, IL, USA). CAVITY CLEANSER was applied on the acid etched dentine for 60 s in the ARC group, and on smear layer-covered dentine in the PF and UN groups. After storage in water for 24 h, the bonded teeth were sectioned into 1 mm thick slabs and further into 0.9 mm × 0.9 mm beams. After immersion in water or ammoniacal silver nitrate for 24 h, the beams were stressed to failure in tension. The fractured surfaces were examined by field-emission scanning electron microscopy (FE-SEM) using backscattered electron mode. The silver-stained slabs were used to examine nanoleakage within the bonded interface by FE-SEM. Results: The resin cement and chlorhexidine treatment had significant effects (p < 0.0001) on mTBS; while the storage media had no significant effect (p = 0.435). The mTBS of ARC was significantly higher than the other cements. Chlorhexidine reduced mTBS and produced pronounced nanoleakage when PF and UC were luted to dentine. Conclusions: Pre-treatment with chlorhexidine affected the integrity of dentine bonding with PF and UC, while there was no adverse effect on coupling of ARC. © 2009 Elsevier Ltd. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/57991
ISSN
2015 Impact Factor: 3.109
2015 SCImago Journal Rankings: 1.029
ISI Accession Number ID
Funding AgencyGrant Number
Faculty of Dentistry
University of Hong Kong
10207401/14207/08004/323/01
10204604/ 07840/08004/324/01
10207821.14207.8004.324.01
Funding Information:

The authors thank Amy Wong of the Electron Microscopy Unit, The University of Hong Kong for technical assistance. The hybrid resin composite (ESTENIA C&B) used in this study were generous gifts from Kuraray Medical Inc. This work was supported by grant 10207401/14207/08004/323/01, 10204604/ 07840/08004/324/01 and 10207821.14207.8004.324.01, Faculty of Dentistry, the University of Hong Kong.

References

 

DC FieldValueLanguage
dc.contributor.authorHiraishi, Nen_HK
dc.contributor.authorYiu, CKYen_HK
dc.contributor.authorKing, NMen_HK
dc.contributor.authorTay, FRen_HK
dc.date.accessioned2010-05-31T03:21:59Z-
dc.date.available2010-05-31T03:21:59Z-
dc.date.issued2009en_HK
dc.identifier.citationJournal Of Dentistry, 2009, v. 37 n. 6, p. 440-448en_HK
dc.identifier.issn0300-5712en_HK
dc.identifier.urihttp://hdl.handle.net/10722/57991-
dc.description.abstractObjectives: The aim of this study was to investigate the effect of pre-treatment by chlorhexidine on the microtensile bond strength (mTBS) of resin cements and nanoleakage at the resin-dentine interfaces. Methods: Cylindrical composite blocks were luted to human dentine using resin cements (RelyX ARC, 3M ESPE: ARC; Panavia F, Kuraray Medical Inc.: PF; RelyX Unicem, 3M ESPE: UN) with/without pre-treatment by 2% chlorhexidine digluconate (CAVITY CLEANSER, Bisco, Inc., Schaumburg, IL, USA). CAVITY CLEANSER was applied on the acid etched dentine for 60 s in the ARC group, and on smear layer-covered dentine in the PF and UN groups. After storage in water for 24 h, the bonded teeth were sectioned into 1 mm thick slabs and further into 0.9 mm × 0.9 mm beams. After immersion in water or ammoniacal silver nitrate for 24 h, the beams were stressed to failure in tension. The fractured surfaces were examined by field-emission scanning electron microscopy (FE-SEM) using backscattered electron mode. The silver-stained slabs were used to examine nanoleakage within the bonded interface by FE-SEM. Results: The resin cement and chlorhexidine treatment had significant effects (p < 0.0001) on mTBS; while the storage media had no significant effect (p = 0.435). The mTBS of ARC was significantly higher than the other cements. Chlorhexidine reduced mTBS and produced pronounced nanoleakage when PF and UC were luted to dentine. Conclusions: Pre-treatment with chlorhexidine affected the integrity of dentine bonding with PF and UC, while there was no adverse effect on coupling of ARC. © 2009 Elsevier Ltd. All rights reserved.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.subjectChlorhexidineen_HK
dc.subjectDentine disinfectanten_HK
dc.subjectMicrotensile bond strengthen_HK
dc.subjectNanoleakageen_HK
dc.subjectResin cementen_HK
dc.subjectSEMen_HK
dc.titleEffect of 2% chlorhexidine on dentin microtensile bond strengths and nanoleakage of luting cementsen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0300-5712&volume=37&issue=6&spage=440&epage=448&date=2009&atitle=Effect+of+2%+chlorhexidine+on+dentin+microtensile+bond+strengths+and+nanoleakage+of+luting+cementsen_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.2009.02.002en_HK
dc.identifier.pmid19269731-
dc.identifier.scopuseid_2-s2.0-64549129100en_HK
dc.identifier.hkuros161657en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-64549129100&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume37en_HK
dc.identifier.issue6en_HK
dc.identifier.spage440en_HK
dc.identifier.epage448en_HK
dc.identifier.isiWOS:000266175800004-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridHiraishi, N=8925934400en_HK
dc.identifier.scopusauthoridYiu, CKY=7007115156en_HK
dc.identifier.scopusauthoridKing, NM=7201762850en_HK
dc.identifier.scopusauthoridTay, FR=7102091962en_HK

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