Effect of handling material on mechanical and optical properties of feldspathic porcelain

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dc.contributor.authorBitencourt, Sandro Basso [UNESP]
dc.contributor.authorBastos, Natália Almeida
dc.contributor.authorMazza, Letícia Cerri [UNESP]
dc.contributor.authorRangel, Elidiane Cipriano [UNESP]
dc.contributor.authorDe Souza, Grace Mendonça
dc.contributor.authorda Silva Pereira, Flávia [UNESP]
dc.contributor.authorGoiato, Marcelo Coelho [UNESP]
dc.contributor.authordos Santos, Daniela Micheline [UNESP]
dc.contributor.authorPesqueira, Aldiéris Alves [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversity of Toronto
dc.date.accessioned2021-06-25T11:05:11Z
dc.date.available2021-06-25T11:05:11Z
dc.date.issued2020-01-01
dc.description.abstractObjective: To evaluate the optical, chemical, and mechanical properties of feldspathic porcelain after handling with different instrument materials. Material and methods: Feldspathic porcelain was manipulated with different spatula compositions: metal spatula (MS), plastic spatula (PS), and glass spatula (GS) for the fabrication of 30 (n = 10) disks. Contrast ratio (CR), translucency parameter (TP), and surface Knoop microhardness (KHN) were measured. The color change (ΔE00) was evaluated using the CIEDE2000 system. Scanning electron microscopy (SEM) and energy-dispersive spectroscopy (EDS) were used for surface analysis. Data were analyzed using one-way ANOVA and Tukey test (P < 0.05). Results: All groups presented different morphological surfaces with higher presence of Al on the MS. PS group presented lower Al, Si, K than MS, and GS. Higher CR was observed for PS (0.734; P < 0.043), followed by MS (0.696; P < 0.043) and GS (0.65; P < 0.011). The highest TP (13.06) and KHN (386.27) were presented by GS (P < 0.001). MS and PS presented similar KHN results. The higher ΔE00 were found for plastic/metal comparison. Also, the L* values for the MS group (67.49) were lower than the other groups. Conclusion: The use of metal spatula promoted higher color alteration during feldspathic porcelain manipulation than did the other materials. Handling with glass instrument promoted higher microhardness than other spatula materials. Clinical significance: The effect of the material used for ceramic handling on feldspathic porcelain properties is often ignored. This study shows that the handling spatula material must be carefully chosen to avoid inadvertent changes to the feldspathic porcelain restoration.en
dc.description.affiliationDepartment of Dental Materials and Prosthodontics São Paulo State University (UNESP) School of Dentistry
dc.description.affiliationDepartment of Operative Dentistry Endodontics and Dental Materials Bauru School of Dentistry University of São Paulo
dc.description.affiliationLaboratory of Technological Plasmas São Paulo State University (UNESP)
dc.description.affiliationFaculty of Dentistry University of Toronto
dc.description.affiliationUnespDepartment of Dental Materials and Prosthodontics São Paulo State University (UNESP) School of Dentistry
dc.description.affiliationUnespLaboratory of Technological Plasmas São Paulo State University (UNESP)
dc.identifierhttp://dx.doi.org/10.1111/jerd.12665
dc.identifier.citationJournal of Esthetic and Restorative Dentistry.
dc.identifier.doi10.1111/jerd.12665
dc.identifier.issn1708-8240
dc.identifier.issn1496-4155
dc.identifier.scopus2-s2.0-85092270108
dc.identifier.urihttp://hdl.handle.net/11449/208030
dc.language.isoeng
dc.relation.ispartofJournal of Esthetic and Restorative Dentistry
dc.sourceScopus
dc.subjectceramics
dc.subjectcolor science
dc.subjectdental materials
dc.titleEffect of handling material on mechanical and optical properties of feldspathic porcelainen
dc.typeArtigo
unesp.author.orcid0000-0001-9140-7516[1]
unesp.author.orcid0000-0002-8365-0978[2]
unesp.author.orcid0000-0002-7521-9723[5]
unesp.author.orcid0000-0002-3800-3050[7]

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