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dc.contributor.CRUESPUNIVERSIDADE DE ESTADUAL DE CAMPINASpt_BR
dc.identifier.isbn1559-2863pt
dc.typeArtigo de Periódicopt_BR
dc.titleStrengthening Of Porcelain Provided By Resin Cements And Flowable Compositespt_BR
dc.contributor.authorSpazzinpt_BR
dc.contributor.authorAO; Guardapt_BR
dc.contributor.authorGB; Oliveira-Ogliaript_BR
dc.contributor.authorA; Lealpt_BR
dc.contributor.authorFB; Correr-Sobrinhopt_BR
dc.contributor.authorL; Moraespt_BR
dc.contributor.authorRRpt_BR
unicamp.author.emailmoraesrr@gmail.compt_BR
dc.subjectAll-ceramic Restorationspt_BR
dc.subjectBiaxial Flexure Strengthpt_BR
dc.subjectMechanical-propertiespt_BR
dc.subjectSelf-adhesivept_BR
dc.subjectDental Ceramicspt_BR
dc.subjectLuting Agentspt_BR
dc.subjectImpactpt_BR
dc.subjectModuluspt_BR
dc.subjectPolymerizationpt_BR
dc.description.abstractThis study evaluated the effect of mechanical properties of resin-based luting agents on the strength of resin-coated porcelain. The luting agents tested were two flowable resin composites (Filtek Z350 Flow and Tetric-N Flow), a light-cured resin cement (Variolink Veneer [VV]), and a dual-cured resin cement (Variolink II) in either light-cured (base paste) or dualcured (base + catalyst pastes [VD]) mode. Flexural strength (sigma(f)) and modulus of elasticity (E-f) of the luting agents were measured in three-point bending mode (n=5). Porcelain discs (Vita VM7) were tested either untreated (control) or acid etched, silanized, and coated with the luting agents. Biaxial flexural strength (sigma(bf)) of the porcelain discs was tested using a ball-onring setup (n=30). The sigma(bf) of the resin-coated specimens was calculated at z-axial positions for multilayer specimens in the ball-on-ring test: position z = 0 (ceramic surface at the bonded interface) and position z = -t(2) (luting agent surface above ring). The sigma(f) and E-f data were subjected to analysis of variance and the Student-Newman-Keuls test (alpha=0.05). A Weibull analysis was performed for sigma(bf) data. Weibull modulus (m) and characteristic strength (sigma(0)) were calculated. Linear regression analyses investigated the relationship between mechanical properties of the luting agents and the strengthening of porcelain. VD had higher and VV had lower mechanical strength than the other materials. At z = 0, all resin-coated groups had higher sigma(bf) than the control group. No significant differences between the luting agents were observed for sigma(bf) and sigma(0). At z = -t(2), VD had the highest sigma(bf) and sigma(0), whereas VV had the poorest results. No significant differences in m were observed across groups. A linear increase in flexural strength of the porcelain was associated with increased sigma(f) and E-f of the luting agents at position z = -t(2). In conclusion, resin coating and use of luting agents with better physical properties generally improved the mechanical performance of porcelain.en
dc.relation.ispartofOperative Dentistrypt_BR
dc.publisher.cityINDIANAPOLISpt_BR
dc.publisherOPERATIVE DENTISTRY INCpt_BR
dc.date.issued2016pt_BR
dc.identifier.citationOperative Dentistry. OPERATIVE DENTISTRY INC, n. 41, n. 2, p. 179 - 188.pt_BR
dc.language.isoEnglishpt_BR
dc.description.volume41pt_BR
dc.description.issuenumberpt_BR
dc.description.firstpage179pt_BR
dc.description.lastpage188pt_BR
dc.rightsabertopt_BR
dc.sourceWOSpt_BR
dc.identifier.issn0361-7734pt_BR
dc.identifier.wosidWOS:000376158200008pt_BR
dc.identifier.doi10.2341/15-025-Lpt_BR
dc.identifier.urlhttp://www.jopdentonline.org/doi/10.2341/15-025-L?url_ver=Z39.88-2003&rfr_id=ori:rid:crossref.org&rfr_dat=cr_pub%3dpubmedpt_BR
dc.description.sponsorshipFAPERGS/Brazil [0902063]pt_BR
dc.description.sponsorshipCNPq/Brazil [503897/2012-4]pt_BR
dc.description.sponsorship1Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)pt_BR
dc.date.available2016-12-06T18:30:18Z-
dc.date.accessioned2016-12-06T18:30:18Z-
dc.description.provenanceMade available in DSpace on 2016-12-06T18:30:18Z (GMT). No. of bitstreams: 1 000376158200008.pdf: 840795 bytes, checksum: fa301fea9218a7eb190e2113c066b59a (MD5) Previous issue date: 2016en
dc.identifier.urihttp://repositorio.unicamp.br/jspui/handle/REPOSIP/320007-
dc.description.conferencelocationpt_BR
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