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Conference Paper: Chlorhexidine and Ethanol-wet Bonding of Fiber Posts to Intraradicular Dentine

TitleChlorhexidine and Ethanol-wet Bonding of Fiber Posts to Intraradicular Dentine
Authors
KeywordsAdhesion
Chlorhexidine
Ethanol
Dentin bonding agents and Fiber-reinforced composites
Issue Date2012
PublisherSage Publications, Inc. The Journal's web site is located at http://www.sagepub.com/journalsProdDesc.nav?prodId=Journal201925
Citation
The Annual Meeting of the International Association for Dental Research (IADR) Southeast Asian Division, Hong Kong, China, 3-4 November 2012. In Journal of Dental Research, 2012, v. 91 n. Special Issue C: abstract no. 168968 How to Cite?
AbstractObjectives: This laboratory study evaluated the effect of adjunctive application of ethanol-wet bonding and chlorhexidine with hydrophobic adhesive on bonding fiber posts to intraradicular dentine. Methods: After endodontic treatment, thirty-two extracted human teeth with single root and root canal were prepared for post space. The teeth were randomly divided into four groups (n=8) after etching and rinsing for rewetting: Group 1: Water-wet bonding, Group 2: Water-wet bonding with 2% chlorhexidine, Group 3: Ethanol-wet bonding, Group 4: Ethanol-wet bonding with 2% chlorhexidine. The rewetting agent was applied for 60 seconds. Two coats of primer (50 wt% of 100% ethanol and 50 wt% of hydrophobic resin) followed by hydrophobic resin application were applied to root dentine and light-cured for 40 seconds. The fiber post was subsequently luted to bonded root dentine using dual cure resin cement. After 24 hr, five bonded roots from each group were subjected to push-out bond strength testing and subsequent failure mode analysis. Bond strength data were evaluated using two-way ANOVA and Tukey’s test (α=0.05). Three teeth from each group were sectioned and interfacial nanoleakage was examined using a field-emission scanning electron microscopy and analyzed using chi-square test (α=0.05). Results: Groups 3 and 4 showed significantly higher bond strengths and significantly lower interfacial nanoleakage, when compared to Groups 1 and 2. Addition of 2% CHX to ethanol-wet bonding did not alter the bond strength of hydrophobic adhesive to intraradicular dentine. No significant difference in bond strength was found at different root regions. Conclusions: Ethanol-wet bonding with a hydrophobic adhesive improved bond strength of fiber post luted to radicular dentine. The addition of 2% CHX to ethanol-wet bonding did not have any adverse effect on bond strength to radicular dentine. (This study was supported by HKU GRF 784410M) This abstract is based on research that was funded entirely or partially by an outside source: HKU GRF 784410M
DescriptionSession: Dental Materials
Persistent Identifierhttp://hdl.handle.net/10722/189682
ISSN
2015 Impact Factor: 4.602
2015 SCImago Journal Rankings: 1.714

 

DC FieldValueLanguage
dc.contributor.authorEkambaram, Men_US
dc.contributor.authorYiu, CKYen_US
dc.contributor.authorMatinlinna, JPen_US
dc.contributor.authorChang, JWWen_US
dc.date.accessioned2013-09-17T14:52:50Z-
dc.date.available2013-09-17T14:52:50Z-
dc.date.issued2012en_US
dc.identifier.citationThe Annual Meeting of the International Association for Dental Research (IADR) Southeast Asian Division, Hong Kong, China, 3-4 November 2012. In Journal of Dental Research, 2012, v. 91 n. Special Issue C: abstract no. 168968en_US
dc.identifier.issn0022-0345-
dc.identifier.urihttp://hdl.handle.net/10722/189682-
dc.descriptionSession: Dental Materials-
dc.description.abstractObjectives: This laboratory study evaluated the effect of adjunctive application of ethanol-wet bonding and chlorhexidine with hydrophobic adhesive on bonding fiber posts to intraradicular dentine. Methods: After endodontic treatment, thirty-two extracted human teeth with single root and root canal were prepared for post space. The teeth were randomly divided into four groups (n=8) after etching and rinsing for rewetting: Group 1: Water-wet bonding, Group 2: Water-wet bonding with 2% chlorhexidine, Group 3: Ethanol-wet bonding, Group 4: Ethanol-wet bonding with 2% chlorhexidine. The rewetting agent was applied for 60 seconds. Two coats of primer (50 wt% of 100% ethanol and 50 wt% of hydrophobic resin) followed by hydrophobic resin application were applied to root dentine and light-cured for 40 seconds. The fiber post was subsequently luted to bonded root dentine using dual cure resin cement. After 24 hr, five bonded roots from each group were subjected to push-out bond strength testing and subsequent failure mode analysis. Bond strength data were evaluated using two-way ANOVA and Tukey’s test (α=0.05). Three teeth from each group were sectioned and interfacial nanoleakage was examined using a field-emission scanning electron microscopy and analyzed using chi-square test (α=0.05). Results: Groups 3 and 4 showed significantly higher bond strengths and significantly lower interfacial nanoleakage, when compared to Groups 1 and 2. Addition of 2% CHX to ethanol-wet bonding did not alter the bond strength of hydrophobic adhesive to intraradicular dentine. No significant difference in bond strength was found at different root regions. Conclusions: Ethanol-wet bonding with a hydrophobic adhesive improved bond strength of fiber post luted to radicular dentine. The addition of 2% CHX to ethanol-wet bonding did not have any adverse effect on bond strength to radicular dentine. (This study was supported by HKU GRF 784410M) This abstract is based on research that was funded entirely or partially by an outside source: HKU GRF 784410M-
dc.languageengen_US
dc.publisherSage Publications, Inc. The Journal's web site is located at http://www.sagepub.com/journalsProdDesc.nav?prodId=Journal201925-
dc.relation.ispartofJournal of Dental Researchen_US
dc.rightsJournal of Dental Research. Copyright © Sage Publications, Inc.-
dc.subjectAdhesion-
dc.subjectChlorhexidine-
dc.subjectEthanol-
dc.subjectDentin bonding agents and Fiber-reinforced composites-
dc.titleChlorhexidine and Ethanol-wet Bonding of Fiber Posts to Intraradicular Dentineen_US
dc.typeConference_Paperen_US
dc.identifier.emailYiu, CKY: ckyyiu@hkucc.hku.hken_US
dc.identifier.emailMatinlinna, JP: jpmat@hku.hken_US
dc.identifier.emailChang, JWW: changww@hku.hken_US
dc.identifier.authorityYiu, CKY=rp00018en_US
dc.identifier.authorityMatinlinna, JP=rp00052en_US
dc.identifier.authorityChang, JWW=rp00046en_US
dc.identifier.hkuros224584en_US
dc.identifier.volume91en_US
dc.identifier.issueSpecial Issue C: abstract no. 168968-
dc.publisher.placeUnited States-

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