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Conference Paper: Incorporation of proanthocyanidin into dental adhesive on resin dentine bonding

TitleIncorporation of proanthocyanidin into dental adhesive on resin dentine bonding
Authors
KeywordsAdhesion
Dentin bonding agents
Proanthocyanidin
Issue Date2011
PublisherSage Publications, Inc.. The Journal's web site is located at http://www.sagepub.com/journalsProdDesc.nav?prodId=Journal201925
Citation
The 25th Annual Scientific Meeting of the IADR-SEA Division and the 22nd Annual Meeting of SEAADE, Singapore, 28-30 October 2011. In Journal of Dental Research, 2011, v. 90 Spe. Iss. B, abstract no.116 How to Cite?
AbstractOBJECTIVE: This study evaluated the effect of proanthocyanidin (PA) incorporation into experimental dental adhesives on resin-dentine bond strength and dentine pulp complex. METHODS: The experimental adhesive was first formulated by combining 50 wt% comonomer mixtures with 50 wt% ethanol. Proanthocyanidin was then added directly to the ethanol-solvated experimental adhesives to yield concentrations of 1.0 wt%, 2.0 wt% and 3.0 wt%. The PA-free experimental adhesive served as the control. Prepared dentine surfaces from extracted third molars were bonded using the experimental adhesives and divided into 4 groups and proceed for microtensile bond strength testing after 24 hrs in artificial saliva. Additional bonded specimens were prepared for nanoleakage analysis under FE-SEM, nano-indentation and SEM/EDX analysis. RESULTS: No significant difference in dentine bond strength was found among proanthocyanidin-free, 1% and 2% proanthocyanidin-incorporated dental adhesives (P>0.05). Conversely, incorporation of 3% proanthocyanidin into dental adhesives significantly lowered dentine bond strength with increased percentage of adhesive failure and nanoleakge at the bonded interface (P<0.05). The 2% PA incorporated adhesive has shown to increase the nanohardness and modulus of elasticity of the hybrid layer (P<0.05). Calcium and Phosphate ratio has significantly increased in the hybrid layer infiltrated with 2% PA incorporated adhesive (P<0.05).Conclusion: Incorporation of 2% proanthocyanidin into dental adhesives had no adverse effect on resin-dentine bond strength and has shown to increase the nanomechanical properties of the hybrid layer.
DescriptionOral Communication Session 3: abstract no. 116
Persistent Identifierhttp://hdl.handle.net/10722/146938
ISSN
2015 Impact Factor: 4.602
2015 SCImago Journal Rankings: 1.714

 

DC FieldValueLanguage
dc.contributor.authorEpasinghe, DJen_US
dc.contributor.authorYiu, Cen_US
dc.contributor.authorKing, Nen_US
dc.contributor.authorTay, FRen_US
dc.date.accessioned2012-05-23T05:50:56Z-
dc.date.available2012-05-23T05:50:56Z-
dc.date.issued2011en_US
dc.identifier.citationThe 25th Annual Scientific Meeting of the IADR-SEA Division and the 22nd Annual Meeting of SEAADE, Singapore, 28-30 October 2011. In Journal of Dental Research, 2011, v. 90 Spe. Iss. B, abstract no.116en_US
dc.identifier.issn0022-0345-
dc.identifier.urihttp://hdl.handle.net/10722/146938-
dc.descriptionOral Communication Session 3: abstract no. 116-
dc.description.abstractOBJECTIVE: This study evaluated the effect of proanthocyanidin (PA) incorporation into experimental dental adhesives on resin-dentine bond strength and dentine pulp complex. METHODS: The experimental adhesive was first formulated by combining 50 wt% comonomer mixtures with 50 wt% ethanol. Proanthocyanidin was then added directly to the ethanol-solvated experimental adhesives to yield concentrations of 1.0 wt%, 2.0 wt% and 3.0 wt%. The PA-free experimental adhesive served as the control. Prepared dentine surfaces from extracted third molars were bonded using the experimental adhesives and divided into 4 groups and proceed for microtensile bond strength testing after 24 hrs in artificial saliva. Additional bonded specimens were prepared for nanoleakage analysis under FE-SEM, nano-indentation and SEM/EDX analysis. RESULTS: No significant difference in dentine bond strength was found among proanthocyanidin-free, 1% and 2% proanthocyanidin-incorporated dental adhesives (P>0.05). Conversely, incorporation of 3% proanthocyanidin into dental adhesives significantly lowered dentine bond strength with increased percentage of adhesive failure and nanoleakge at the bonded interface (P<0.05). The 2% PA incorporated adhesive has shown to increase the nanohardness and modulus of elasticity of the hybrid layer (P<0.05). Calcium and Phosphate ratio has significantly increased in the hybrid layer infiltrated with 2% PA incorporated adhesive (P<0.05).Conclusion: Incorporation of 2% proanthocyanidin into dental adhesives had no adverse effect on resin-dentine bond strength and has shown to increase the nanomechanical properties of the hybrid layer.-
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.subjectDentin bonding agents-
dc.subjectProanthocyanidin-
dc.titleIncorporation of proanthocyanidin into dental adhesive on resin dentine bondingen_US
dc.typeConference_Paperen_US
dc.identifier.emailEpasinghe, DJ: jeevanie@hku.hken_US
dc.identifier.emailYiu, C: ckyyiu@hkucc.hku.hken_US
dc.identifier.emailKing, N: hhdbknm@hkucc.hku.hken_US
dc.identifier.emailTay, FR: franktay@hkucc.hku.hken_US
dc.identifier.authorityYiu, C=rp00018en_US
dc.identifier.authorityKing, N=rp00006en_US
dc.description.naturelink_to_OA_fulltext-
dc.identifier.hkuros199526en_US
dc.identifier.volume90en_US
dc.identifier.issueSpe. Iss. Ben_US
dc.publisher.placeUnited States-
dc.description.otherThe 25th Annual Scientific Meeting of the IADR-SEA Division and the 22nd Annual Meeting of SEAADE, Singapore, 28-30 October 2011. In Journal of Dental Research, 2011, v. 90 Spe. Iss. B, abstract no.116-

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