Shear bond strength of a ceramic to Co-Cr alloys

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dc.contributor.authorJoias, Renato Morales
dc.contributor.authorTango, Rubens Nisie [UNESP]
dc.contributor.authorJunho de Araujo, Jose Eduardo
dc.contributor.authorJunho de Araujo, Maria Amelia
dc.contributor.authorFerreira Anzaloni Saavedra, Guilherme de Siqueira
dc.contributor.authorde Arruda Paes-Junior, Tarcisio Jose
dc.contributor.authorKimpara, Estevão Tomomitsu [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.date.accessioned2014-05-20T14:04:59Z
dc.date.available2014-05-20T14:04:59Z
dc.date.issued2008-01-01
dc.description.abstractStatement of problem. Different combinations of Co-Cr alloys bonded to ceramic have been used in dentistry; however, the bond strength of ceramic to metal can vary because of different compositions of these alloys.Purpose. The purpose of this study was to evaluate the shear bond strength of a dental ceramic to 5 commercially available Co-Cr alloys.Material and methods. Five Co-Cr alloys (IPS d.SIGN 20, IPS d.SIGN 30, Remanium 2000, Heranium P, and Wirobond C) were tested and compared to a control group of an Au-Pd alloy (Olympia). Specimen disks, 5 mm high and 4 mm in diameter, were fabricated with the lost-wax technique. Sixty specimens were prepared using opaque and dentin ceramics (VITA Omega 900), veneered, 4 mm high and 4 mm in diameter, over the metal specimens (n = 10). The shear bond strength test was performed in a universal testing machine with a crosshead speed of 0.5 mm/min. After shear bond testing, fracture surfaces were evaluated in a stereomicroscope under x25 magnification. Ultimate shear bond strength (MPa) data were analyzed with 1-way ANOVA and the Tukey HSD test (alpha = .05).Results. The mean (SID) bond strengths (MPa) were: 61.4 (7.8) for Olympia; 94.0 (18.9) for IPS 20; 96.8 (10.2) for I PS 30; 75.1 (12.4) for Remanium; 71.2 (14.3) for Heranium P; and 63.2 (10.9) for Wirobond C. Mean bond strengths for IPS 20 and IPS 30 were not significantly different, but were significantly (P<.001) higher than mean bond strengths for the other 4 alloys, which were not significantly different from each other.Conclusions. Bond strength of a dental ceramic to a Co-Cr alloy is dependent on the alloy composition.en
dc.description.affiliationUniv Estadual Paulista, Fac Odontol Sao Jose Dos Campos, Dept Dent Mat & Prosthodont, Sao Jose Dos Campos Dent Sch, BR-12250000 São Paulo, Brazil
dc.description.affiliationMethodist Univ São Paulo, São Paulo, Brazil
dc.description.affiliationSao Jose Dos Campos Dent Sch, Dept Dent Mat & Prosthodont, São Paulo, Brazil
dc.description.affiliationSao Jose Dos Campos Dent Sch, Dept Operat Dent, São Paulo, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Fac Odontol Sao Jose Dos Campos, Dept Dent Mat & Prosthodont, Sao Jose Dos Campos Dent Sch, BR-12250000 São Paulo, Brazil
dc.format.extent54-59
dc.identifierhttp://dx.doi.org/10.1016/S0022-3913(08)60009-8
dc.identifier.citationJournal of Prosthetic Dentistry. New York: Mosby-elsevier, v. 99, n. 1, p. 54-59, 2008.
dc.identifier.doi10.1016/S0022-3913(08)60009-8
dc.identifier.issn0022-3913
dc.identifier.lattes9138716680440603
dc.identifier.lattes0967916388665754
dc.identifier.orcid0000-0003-0586-4644
dc.identifier.orcid0000-0003-0946-1826
dc.identifier.urihttp://hdl.handle.net/11449/22790
dc.identifier.wosWOS:000252565500011
dc.language.isoeng
dc.publisherMosby-elsevier
dc.relation.ispartofJournal of Prosthetic Dentistry
dc.relation.ispartofjcr2.347
dc.relation.ispartofsjr1,087
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.titleShear bond strength of a ceramic to Co-Cr alloysen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderMosby-elsevier
unesp.author.lattes9138716680440603[2]
unesp.author.lattes0967916388665754[8]
unesp.author.orcid0000-0003-0586-4644[8]
unesp.author.orcid0000-0003-0946-1826[2]
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Ciência e Tecnologia, São José dos Campospt

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