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dc.contributor.CRUESPUniversidade Estadual de Campinaspt_BR
dc.typeArtigo de periódicopt_BR
dc.titleInfluence of Chlorhexidine Concentration on the Durability of Etch-and-Rinse Dentin Bonds: A 12-month In Vitro Studypt_BR
dc.contributor.authorBreschi, Lpt_BR
dc.contributor.authorCammelli, Fpt_BR
dc.contributor.authorVisintini, Ept_BR
dc.contributor.authorMazzoni, Apt_BR
dc.contributor.authorVita, Fpt_BR
dc.contributor.authorCarrilho, Mpt_BR
dc.contributor.authorCadenaro, Mpt_BR
dc.contributor.authorFoulger, Spt_BR
dc.contributor.authorMazzoti, Gpt_BR
dc.contributor.authorTay, FRpt_BR
dc.contributor.authorDi Lenarda, Rpt_BR
dc.contributor.authorPashley, Dpt_BR
unicamp.authorBreschi, Lorenzo Di Lenarda, Roberto Univ Trieste, Dept Biomed, Unit Dent Sci & Biomat, I-34129 Trieste, Italypt_BR
unicamp.authorBreschi, Lorenzo IOR, Uni Bologna, IGM CNR, Bologna, Italypt_BR
unicamp.authorCarrilho, Marcela Univ Campinas UNICAMP, Dept Restorat Dent, Piracicaba Sch Dent, Piracicaba, Brazilpt_BR
unicamp.authorCarrilho, Marcela Bandeirante Univ Sao Paulo UNIBAN, Sao Paulo, Brazilpt_BR
unicamp.authorCadenaro, Milena Univ Trieste, Dept Biomed, Unit Dent Sci & Biomat, I-34129 Trieste, Italypt_BR
unicamp.authorFoulger, Stephen Clemson Univ, Dept Mat Sci, Clemson, SC USApt_BR
unicamp.authorMazzoti, Giovanni Univ Bologna, Dept SAU & FAL, I-40126 Bologna, Italypt_BR
unicamp.authorTay, Franklin R. Pashley, David Med Coll Georgia, Sch Dent, Dept Oral Biol & Maxillofacial Pathol, Augusta, GA 30912 USApt_BR
dc.subjectdental bonding systemspt_BR
dc.subjecthybrid layerpt_BR
dc.subject.wosSingle-step Adhesivespt_BR
dc.subject.wosWater Storagept_BR
dc.subject.wosMatrix Metalloproteinasespt_BR
dc.subject.wosResin Hydrophilicitypt_BR
dc.subject.wosNanoleakage Expressionpt_BR
dc.subject.wosVivo Degradationpt_BR
dc.subject.wos2 Modespt_BR
dc.description.abstractPurpose: To investigate the effect of 0.2% and 2% chlorhexidine (CHX) used as a therapeutic primer on the long-term bond strengths of two etch-and-rinse adhesive systems. Materials and Methods: Adper Scotchbond 1XT (SB1) and XP-Bond (XPB) were evaluated. Etched dentin substrates were assigned to 6 treatment groups: (1) 0.2% CHX + SB1; (2) 2% CHX + SB1; (3) SB1 (control); (4) 0.2% CHX + XPB; (5) 2% CHX + XPB; (6) XPB (control). Composite buildups were made and beams prepared for microtensile bond strength testing. Beams were divided into 3 subgroups and either immediately pulled to failure or stored in artificial saliva for 6 or 12 months prior to testing. Data were evaluated with three-way ANOVA. Additional adhesive interfaces were prepared to investigate nanoleakage expression by TEM. Results: SB1 and XPB showed similar immediate bond strength values with or without CHX pretreatment (p > 0.05). After 12 months, bonds fell from 43.9 +/- 9.5 MPa to 20.1 +/- 5.4 MPa and from 39.6 +/- 9.4 MPa to 14.2 +/- 5.0 MPa in control specimens for SB1 and XPB respectively, while bond fell only from 41.9 +/- 9.6MPa to 33.2 +/- 8.3 MPa and 38.3 +/- 8.9 MPa to 26.5 +/- 10.9 (for SB1 and XPB, respectively) when 0.2% CHX was previously used. CHX concentration did not affect bond strength values (0.2% vs 2%, p > 0.05). Nanoleakage increased during aging in controls, but reduced silver deposits were found in CHX-treated specimens. Conclusion: Chlorhexidine significantly reduced the loss of bond strength seen in control bonds. Since no bacterial growth was present in the aging conditions, the results of this study suggest that endogenous factors thought to degrade the adhesive interface can be inhibited by CHX. Further in vivo trials should confirm the role of CHX in bond
dc.relation.ispartofJournal Of Adhesive Dentistrypt_BR
dc.relation.ispartofabbreviationJ. Adhes. Dent.pt_BR
dc.publisher.cityHanover Parkpt_BR
dc.publisherQuintessence Publishing Co Incpt_BR
dc.identifier.citationJournal Of Adhesive Dentistry. Quintessence Publishing Co Inc, v. 11, n. 3, n. 191, n. 198, 2009.pt_BR
dc.sourceWeb of Sciencept_BR
dc.description.sponsorshipMIUR grants (Italy)pt_BR
dc.description.sponsorshipNational Institute of Dental and Craniofacial Research (NIDCR) [R01 DIE 015306]pt_BR
dc.description.sponsordocumentnumberNational Institute of Dental and Craniofacial Research (NIDCR) [R01 DIE 015306]pt
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