Influence of thickness and degree of opacity of lithium disilicate on the degree of conversion and bond strength of resin cements

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dc.contributor.authorQueiroz, Mariana Elias [UNESP]
dc.contributor.authorMaluly-Proni, Ana Teresa [UNESP]
dc.contributor.authorTsutsumi, Mariana Sati Cantalejo [UNESP]
dc.contributor.authorDallazen, Eduardo [UNESP]
dc.contributor.authorde Castro-Hoshino, Lidiane Vizioli
dc.contributor.authorde Souza, Monique
dc.contributor.authorBaesso, Mauro Luciano
dc.contributor.authordos Santos, Paulo Henrique [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionUniversidade Estadual de Maringá (UEM)
dc.contributor.institutionFaculty of Dentistry – UofT
dc.date.accessioned2023-07-29T13:56:09Z
dc.date.available2023-07-29T13:56:09Z
dc.date.issued2023-07-01
dc.description.abstractThe aim of this study was to evaluate the influence of various opacities and thicknesses of lithium disilicate on the degree of conversion (DC) of two resin cements and on their bond strength (BS) to the ceramic. Two hundred and forty ceramic samples of lithium disilicate with high translucency (HT), low translucency (LT), and medium opacity (MO) were obtained from IPS e. max CAD in five different thicknesses. Light-cured and dual-cured resin cements were used for DC (n = 9) and BS (n = 8). Cement samples were light-cured under ceramic samples and analyzed using a Raman confocal spectrometer to determine the DC. For BS, resin cement cylinders were fabricated using ceramic samples which were thsen subjected to a microshear bond strength test. The mean values were provided for statistical analysis. The increase in thickness resulted in a decrease in DC for both cements under all experimental conditions, but only affected the BS of the light-cured cement for the MO ceramic. Comparing the opacities, the most translucent ceramics with particular thicknesses exhibited higher DC values than the less translucent ceramics. The LT and MO ceramics with certain thicknesses exhibited the highest BS values than the HT. The dual-cured cement generally showed highest values in both analyses than the light-cured cement. A thicker and more opaque ceramic material can reduce the DC of the cement. The BS decreases with the increasing thickness of the more-opaque ceramics.en
dc.description.affiliationDepartment of Dental Materials and Prosthodontics Araçatuba School of Dentistry São Paulo State University – UNESP, SP
dc.description.affiliationDepartment of Preventive and Restorative Dentistry Araçatuba School of Dentistry São Paulo State University – UNESP, SP
dc.description.affiliationDepartment of Diagnosis and Surgery Araçatuba School of Dentistry São Paulo State University – UNESP, SP
dc.description.affiliationDepartment of Physics State University of Maringá – UEM, PR
dc.description.affiliationDental Research Institute University of Toronto Faculty of Dentistry – UofT
dc.description.affiliationUnespDepartment of Dental Materials and Prosthodontics Araçatuba School of Dentistry São Paulo State University – UNESP, SP
dc.description.affiliationUnespDepartment of Preventive and Restorative Dentistry Araçatuba School of Dentistry São Paulo State University – UNESP, SP
dc.description.affiliationUnespDepartment of Diagnosis and Surgery Araçatuba School of Dentistry São Paulo State University – UNESP, SP
dc.identifierhttp://dx.doi.org/10.1016/j.jmbbm.2023.105934
dc.identifier.citationJournal of the Mechanical Behavior of Biomedical Materials, v. 143.
dc.identifier.doi10.1016/j.jmbbm.2023.105934
dc.identifier.issn1878-0180
dc.identifier.issn1751-6161
dc.identifier.scopus2-s2.0-85160206267
dc.identifier.urihttp://hdl.handle.net/11449/248877
dc.language.isoeng
dc.relation.ispartofJournal of the Mechanical Behavior of Biomedical Materials
dc.sourceScopus
dc.subjectDental materials
dc.subjectDental porcelain
dc.subjectPolymerization
dc.subjectResin cement
dc.titleInfluence of thickness and degree of opacity of lithium disilicate on the degree of conversion and bond strength of resin cementsen
dc.typeArtigo
unesp.author.orcid0000-0002-1036-2617[1]
unesp.author.orcid0000-0001-7104-712X[3]
unesp.author.orcid0000-0002-5118-5370[5]
unesp.author.orcid0000-0002-4100-5153 0000-0002-4100-5153[8]

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Artigos - Materiais Odontológicos e Prótese - FOA
Artigos - Odontologia Restauradora - FOA