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Effect of cleansing methods on saliva-contaminated zirconia: an evaluation of resin bond durability

dc.contributor.authorFeitosa, S. A. [UNESP]
dc.contributor.authorPatel, D.
dc.contributor.authorBorges, A. L. S. [UNESP]
dc.contributor.authorAlshehri, E. Z.
dc.contributor.authorBottino, M. A. [UNESP]
dc.contributor.authorOezcan, M.
dc.contributor.authorValandro, L. F. [UNESP]
dc.contributor.authorBottino, M. C.
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionIndiana Univ
dc.contributor.institutionUniv Zurich
dc.contributor.institutionUniversidade Federal de Sergipe (UFS)
dc.date.accessioned2015-10-21T13:15:19Z
dc.date.available2015-10-21T13:15:19Z
dc.date.issued2015-03-01
dc.description.abstractThe aims of this study were to investigate 1) the influence of cleansing methods after saliva contamination and 2) aging conditions (thermocycling and water storage) on zirconia shear bond strength (SBS) with a resin cement. One hundred and eighty zirconia specimens were sandblasted with 50 mu m aluminum oxide particles, immersed in saliva for one minute (with the exception of the control group, [C]), and divided into groups according to the cleansing method, as follows: water rinse (W); 37% phosphoric acid gel (PA); cleaning paste (ie, Ivoclean (R)) containing mainly zirconium oxide (IC); and 70% isopropanol (AL). Scanning electron microscopy was done to qualitatively evaluate the zirconia surface after each cleansing method. For the SBS test, resin cement buttons were bonded to the specimens using a dedicated jig. SBS was evaluated according to standard protocols after 24 hours, 5000 thermal cycles (TC), or 150 days of water storage. Statistical analysis was performed using two-way analysis of variance and Tukey test (p<0.05). Data showed a significant effect for the 150 days of water storage, TC, and 24 hours of water storage (150 days < TC < 24 hours). Group comparisons showed that PA < AL and W < IC and C. SBS ranged from 10.4 to 21.9 MPa (24 hours), from 6.4 to 14.8 MPa (TC), and from 2.9 to 7.0 MPa (150 days). Failure analysis revealed a greater percentage of mixed failures for the majority of the specimens and a smaller percentage of adhesive failures at the ceramic-resin cement interface. Our findings suggest that Ivoclean (R) was able to maintain adequate SBS values after TC and 150 days of storage, comparable to the uncontaminated zirconia.en
dc.description.affiliationSao Paulo State Univ, Sao Jose dos Campos Dent Sch, Dept Dent Mat &Prosthodont, Sao Jose Dos Campos, SP, Brazil
dc.description.affiliationIndiana Univ, Sch Dent, Dept Restorat Dent, Dent Biomat Div, Indianapolis, IN USA
dc.description.affiliationUniv Zurich, Clin Fixed &Removable Prosthodont &Dent Mat Sci, Ctr Dent &Oral Med, Dent Mat Unit, Zurich, Switzerland
dc.description.affiliationUniv Fed Santa Maria, Sch Dent, Dept Restorat Dent, Div Prosthodont, BR-97119900 Santa Maria, RS, Brazil
dc.description.affiliationUnespSao Paulo State Univ, Sao Jose dos Campos Dent Sch, Dept Dent Mat &Prosthodont, Sao Jose Dos Campos, SP, Brazil
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.format.extent163-171
dc.identifierhttp://www.jopdentonline.org/doi/abs/10.2341/13-323-L
dc.identifier.citationOperative Dentistry, v. 40, n. 2, p. 163-171, 2015.
dc.identifier.doi10.2341/13-323-L
dc.identifier.issn0361-7734
dc.identifier.lattes6043459304176015
dc.identifier.lattes9234456003563666
dc.identifier.orcid0000-0002-5707-7565
dc.identifier.urihttp://hdl.handle.net/11449/128901
dc.identifier.wosWOS:000352490000008
dc.language.isoeng
dc.publisherOperative Dentistry Inc
dc.relation.ispartofOperative Dentistry
dc.relation.ispartofjcr2.130
dc.relation.ispartofsjr1,180
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.titleEffect of cleansing methods on saliva-contaminated zirconia: an evaluation of resin bond durabilityen
dc.typeArtigo
dcterms.rightsHolderOperative Dentistry Inc
unesp.author.lattes6043459304176015[3]
unesp.author.lattes9234456003563666
unesp.author.orcid0000-0002-5707-7565[3]
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Ciência e Tecnologia, São José dos Campospt
unesp.departmentMateriais Odontológicos e Prótese - ICTpt

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