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dc.contributor.authorCollares, Fabrício Mezzomopt_BR
dc.contributor.authorLeitune, Vicente Castelo Brancopt_BR
dc.contributor.authorPortella, Fernando Freitaspt_BR
dc.contributor.authorOgliari, Fabricio Aulopt_BR
dc.contributor.authorSamuel, Susana Maria Wernerpt_BR
dc.date.accessioned2016-08-12T02:14:35Zpt_BR
dc.date.issued2014pt_BR
dc.identifier.issn1677-3217pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/147106pt_BR
dc.description.abstractAim: To evaluate the long-term bond strength, degree of conversion and resistance to degradation in ethanol of HEMA-containing and HEMA-free model adhesive resins of a three-step etch-andrinse adhesive system. Methods: The superficial dentin of 16 bovine incisor teeth was exposed, and the teeth were divided in two groups according to the HEMA concentration in the experimental adhesive (0% and 15%). In each tooth were made 6 cylindrical composite restorations. Half of the tooth restorations were submitted to microshear bond strength test after 24 h and the other half after 6 months. Degree of conversion of experimental resins was determined by Fourier transform infrared spectroscopy. Crosslink density was indirectly determined by the Knoop hardness of five specimens per group before and after immersion in ethanol for 6 h. Results: The group with 0% HEMA showed no difference in bond strength as compared to the group with 15% HEMA after 24 h or 6 months. There was no difference in degree of conversion and crosslink density between groups. Conclusions: HEMA content of the adhesive resin did not influence the bond strength to dentin, degree of conversion or resistance to degradation in ethanol.en
dc.format.mimetypeapplication/pdf
dc.language.isoengpt_BR
dc.relation.ispartofBrazilian journal of oral sciences. Piracicaba. Vol. 13, no. 4 (Oct./Dec. 2014), p. 261-265pt_BR
dc.rightsOpen Accessen
dc.subjectDental bondingen
dc.subjectMateriais odontologicos : Adesivospt_BR
dc.subjectDentin-bonding agentsen
dc.subjectRestauracoes : Adesivaspt_BR
dc.subjectLight-curing of dental adhesivesen
dc.titleLong-term bond strength, degree of conversion and resistance to degradation of a HEMA-free model adhesivept_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb000989957pt_BR
dc.type.originNacionalpt_BR


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