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Zirconia-Porcelain Bonding: Effect of Multiple Firings on Microtensile Bond Strength

dc.contributor.authorTrindade, Flavia Z. [UNESP]
dc.contributor.authorAmaral, Marina [UNESP]
dc.contributor.authorMelo, Renata M. [UNESP]
dc.contributor.authorBottino, Marco A. [UNESP]
dc.contributor.authorValandro, Luiz Felipe
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Federal de Sergipe (UFS)
dc.date.accessioned2014-12-03T13:11:11Z
dc.date.available2014-12-03T13:11:11Z
dc.date.issued2013-01-01
dc.description.abstractPurpose: To determine the bond strength between zirconia and porcelain with varying numbers of veneer firing cycles.Materials and Methods: Fifty specimens of zirconia veneered with feldspathic ceramic were submitted to one (1-firing), two (2-firings), three (3-firings), four (4-firings), or five (5-firings) firing cycles to sinter the porcelain. After the respective number of firings, the specimens were embedded into acrylic resin and sectioned into bars with a 1-mm(2) cross-sectional area. The microbars were bonded to a special device and attached to a universal testing machine (Emic DL 1000). Microtensile bond strength testing (MTBS) was performed at 0.5 mm/min. The maximum load for fracture was recorded (N) and the microtensile bond strength was calculated in MPa. Data were analyzed using one-way ANOVA and Tukey's test (alpha = 0.05). The Weibull modulus and characteristic strength was also calculated for each experimental group.Results: Specimens submitted to a single firing cycle presented the lowest bond strength values (14.1 MPa), two firing cycles provided intermediate bond strength values (15 MPa) and the other groups presented equivalently high values (18.1 - 18.4 MPa). The Weibull modulus did not change between the groups.Conclusion: More than three firing cycles of a veneer ceramic provided higher bond strengths between zirconia and the veneering ceramic.en
dc.description.affiliationSao Paulo State Univ, Dept Dent Mat & Prosthodont, Sao Jose Dos Campos, SP, Brazil
dc.description.affiliationUniv Fed Santa Maria, Dept Restorat Dent Prosthodont, Sch Dent, BR-97015372 Santa Maria, RS, Brazil
dc.description.affiliationUnespSao Paulo State Univ, Dept Dent Mat & Prosthodont, Sao Jose Dos Campos, SP, Brazil
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipIdFAPESP: 10/50879-0
dc.format.extent467-472
dc.identifierhttp://dx.doi.org/10.3290/j.jad.a29584
dc.identifier.citationJournal Of Adhesive Dentistry. Hanover Park: Quintessence Publishing Co Inc, v. 15, n. 5, p. 467-472, 2013.
dc.identifier.doi10.3290/j.jad.a29584
dc.identifier.issn1461-5185
dc.identifier.lattes9234456003563666
dc.identifier.urihttp://hdl.handle.net/11449/112969
dc.identifier.wosWOS:000327925200010
dc.language.isoeng
dc.publisherQuintessence Publishing Co Inc
dc.relation.ispartofJournal of Adhesive Dentistry
dc.relation.ispartofjcr1.691
dc.relation.ispartofsjr0,839
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectall-ceramicen
dc.subjectzirconiaen
dc.subjectlayering veneeren
dc.subjectmicrotensile bond strengthen
dc.titleZirconia-Porcelain Bonding: Effect of Multiple Firings on Microtensile Bond Strengthen
dc.typeArtigo
dcterms.rightsHolderQuintessence Publishing Co Inc
dspace.entity.typePublication
unesp.author.lattes9234456003563666
unesp.campusUniversidade Estadual Paulista (UNESP), Instituto de Ciência e Tecnologia, São José dos Campospt
unesp.departmentMateriais Odontológicos e Prótese - ICTpt

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