You are in the accessibility menu

Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/22823
Full metadata record
DC FieldValueLanguage
dc.contributor.authorAssuncao Souza, Rodrigo Othavio-
dc.contributor.authorCastilho, Anderson A.-
dc.contributor.authorFernandes, Virgilio V. B.-
dc.contributor.authorBottino, Marco Antonio-
dc.contributor.authorValandroe, Luiz Felipe-
dc.date.accessioned2014-05-20T14:05:04Z-
dc.date.accessioned2016-10-25T17:10:33Z-
dc.date.available2014-05-20T14:05:04Z-
dc.date.available2016-10-25T17:10:33Z-
dc.date.issued2011-04-01-
dc.identifierhttp://dx.doi.org/10.3290/j.jad.a18784-
dc.identifier.citationJournal of Adhesive Dentistry. Hanover Park: Quintessence Publishing Co Inc, v. 13, n. 2, p. 155-162, 2011.-
dc.identifier.issn1461-5185-
dc.identifier.urihttp://hdl.handle.net/11449/22823-
dc.identifier.urihttp://acervodigital.unesp.br/handle/11449/22823-
dc.description.abstractPurpose: The objective of this study was to evaluate the effect of thermocycling (TC), self-adhesive resin cements and surface conditioning on the microtensile bond strength (mu TBS) between feldspathic ceramic blocks and resin cements.Materials and Methods: Fifty-six feldspathic ceramic blocks (10 x 7 x 5 mm) (Vita Mark II) were divided into groups according to the factors "resin cement" (3 cements) and "surface conditioning" (no conditioning or conditioning [10% hydrofluoric acid etching for 5 min + silanization]) (n = 8): group 1: conditioning+Variolink II (control group); group 2: no conditioning+Biscem; group 3: no conditioning+RelyX U100; group 4: no conditioning+Maxcem Elite; group 5: conditioning+Biscem; group 6: conditioning+RelyX U100; group 7: conditioning+Maxcem Elite. The ceramic-cement blocks were sectioned to produce non-trimmed bar specimens (adhered cross-sectional area: 1 +/- 0.1 mm(2)), which were divided into two storage conditions: dry, mu TBS immediately after cutting; TC (12,000x, 5 degrees C/55 degrees C). Statistical significance was deterimined using two-way ANOVA (7 strategies and 2 storage conditions) and the post-hoc Tukey test (p<0.05).Results: Resin cement and thermocycling affected the mu TBS significantly (p = 0.001). In the dry condition, group 5 (18 +/- 6.5 MPa) presented the lowest values of mu TBS when compared to the other groups. TC decreased the mean mu TBS values significantly (p<0.05) for all resin cements tested (9.7 +/- 2.3 to 22.1 +/- 6.3 MPa), except for the resin cement RelyX U100 (22.1 +/- 6.3 MPa). In groups 3 and 4, it was not possible to measure mu TBS, since these groups had 100% pre-test failures during sectioning. Moreover, the same occurred in group 2 after TC, where 100% failure was observed during thermocycling (spontaneous failures).Conclusion: Hydrofluoric acid etching and silanization of the feldspathic ceramic surface are essential for bonding self-adhesive resin cement to a feldspathic ceramic, regardless of the resin cement used. Non-etched ceramic is not recommended.en
dc.format.extent155-162-
dc.language.isoeng-
dc.publisherQuintessence Publishing Co Inc-
dc.sourceWeb of Science-
dc.subjectbond strengthen
dc.subjectfeldspathic ceramicen
dc.subjectresin cementsen
dc.subjectceramic surface treatmenten
dc.subjectthermocyclingen
dc.titleDurability of Microtensile Bond to Nonetched and Etched Feldspar Ceramic: Self-adhesive Resin Cements vs Conventional Resinen
dc.typeoutro-
dc.contributor.institutionUniversidade Federal de Santa Maria (UFSM)-
dc.contributor.institutionUniversidade Federal da Paraíba (UFPB)-
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.description.affiliationFed Univ Santa Maria UFSM, Dept Restorat Dent, Div Prosthodont, Santa Maria, RS, Brazil-
dc.description.affiliationFed Univ Paraiba UFPB, Dept Restorat Dent, Div Prosthodont, Joao Pessoa, Paraiba, Brazil-
dc.description.affiliationSão Paulo State Univ UNESP, Dept Dent Mat & Prosthodont, Sao Jose dos Campos Dent Sch, Sao Jose Dos Campos, Brazil-
dc.description.affiliationUnespSão Paulo State Univ UNESP, Dept Dent Mat & Prosthodont, Sao Jose dos Campos Dent Sch, Sao Jose Dos Campos, Brazil-
dc.identifier.doi10.3290/j.jad.a18784-
dc.identifier.wosWOS:000289754300008-
dc.rights.accessRightsAcesso restrito-
dc.relation.ispartofJournal of Adhesive Dentistry-
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

There are no files associated with this item.
 

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.