Effect of ridge lap surface treatment and thermocycling on microtensile bond strength of acrylic teeth to denture base resins

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dc.contributor.authorde Chaves, Carolina Andrade Lima [UNESP]
dc.contributor.authorRegis, Rômulo Rocha
dc.contributor.authorMachado, Ana Lucia [UNESP]
dc.contributor.authorde Souza, Raphael Freitas
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.date.accessioned2014-05-27T11:24:04Z
dc.date.available2014-05-27T11:24:04Z
dc.date.issued2009-12-01
dc.description.abstractThis study evaluated the effect of denture base polymer type (heat- and microwave-polymerized), ridge lap surface treatment (with and without methyl methacrylate-MMA etching) and thermocycling on the microtensile bond strength (mTBS) of Biotone acrylic teeth. Flat-ground, ridge-lap surface of posterior artifcial teeth were bonded to cylinders of each denture base resin, resulting in the following groups (n=6): G1a - Clássico/with MMA etching; G1b - Clássico/without MMA etching; G2a - OndaCryl/with MMA etching; G2b - OndaCryl/without MMA etching. Rectangular bar specimens with a cross-sectional area of 1 mm 2 were prepared. Half of the bars in each group were thermocycled (5,000 cycles between 4°C and 60°C). mTBS testing was performed in an universal testing machine at a crosshead speed of 0.5 mm/min. Data were analyzed statistically by three-way ANOVA (a=0.05). There was no statisti-caly signifcant difference (p>0.05) for the factors (resin, surface treatment,and thermocycling) or their interactions. The mean mTBS values (MPa) and standard deviations were as follows: Thermocycling - G1a: 41.00 (14.00); G1b: 31.00 (17.00); G2a: 50.00 (27.00); G2b: 40.00 (18.00); No thermocycling - G1a: 37.00 (14.00); G1b: 43.00 (25.00); G2a: 43.00 (14.00); G2b: 40.00 (27.00). The mTBS of Biotone artifcial teeth to the denture base acrylic resins was not infuenced by the polymer type, surface treatment or thermocycling.en
dc.description.affiliationDepartment of Dental Materials and Prosthodontics, Araraquara Dental School São Paulo State University, Araraquara, SP
dc.description.affiliationDepartment of Dental Materials and Prosthodontics Ribeirão Preto Dental School University of São Paulo, Ribeirão Preto, SP
dc.description.affiliationUnespDepartment of Dental Materials and Prosthodontics, Araraquara Dental School São Paulo State University, Araraquara, SP
dc.format.extent127-131
dc.identifierhttp://dx.doi.org/10.1590/S0103-64402009000200007
dc.identifier.citationBrazilian Dental Journal, v. 20, n. 2, p. 127-131, 2009.
dc.identifier.doi10.1590/S0103-64402009000200007
dc.identifier.file2-s2.0-70449727199.pdf
dc.identifier.issn0103-6440
dc.identifier.issn1806-4760
dc.identifier.lattes8000248781842587
dc.identifier.scieloS0103-64402009000200007
dc.identifier.scopus2-s2.0-70449727199
dc.identifier.urihttp://hdl.handle.net/11449/71332
dc.language.isoeng
dc.relation.ispartofBrazilian Dental Journal
dc.relation.ispartofsjr0,476
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectAcrylic resins
dc.subjectArtifcial tooth
dc.subjectMicrotensile bond strength
dc.subjectSurface treatment
dc.titleEffect of ridge lap surface treatment and thermocycling on microtensile bond strength of acrylic teeth to denture base resinsen
dc.typeArtigo
dcterms.licensehttp://www.scielo.br/revistas/bdj/paboutj.htm
unesp.author.lattes8000248781842587[3]
unesp.author.orcid0000-0002-2718-428X[3]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Odontologia, Araraquarapt

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Artigos - Materiais Odontológicos e Prótese - FOAR