Effect of staining layer on roughness after progressive wear of monolithic ceramics

Página do item simplificado
dc.contributor.authorde Matos, Jefferson David Melo [UNESP]
dc.contributor.authorda Rocha Scalzer Lopes, Guilherme [UNESP]
dc.contributor.authorQueiroz, Daher Antonio
dc.contributor.authorCampos, Tiago Moreira Bastos
dc.contributor.authorde Carvalho Ramos, Nathalia [UNESP]
dc.contributor.authorBottino, Marco Antonio [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionThe University of Texas Health Science Center at Houston (UTHealth) School of Dentistry
dc.contributor.institutionAeronautical Technology Institute (ITA)
dc.date.accessioned2023-07-29T13:55:20Z
dc.date.available2023-07-29T13:55:20Z
dc.date.issued2023-01-01
dc.description.abstractPurpose: The aim of this study was to evaluate staining layer behavior applied to high-translucency zirconia (YZHT), feldspathic ceramics (FD), and zirconia-reinforced lithium silicate (ZLS) surfaces against different antagonists. Methods and Materials: Monolithic ceramic discs (n = 120) (ø 12 mm; thickness, 1.2 mm; ISO 6872) were obtained, 30 from YZHT and FD, and 60 from ZLS CAD/CAM blocks (staining layer applied before or after the crystallization procedure). The specimens were divided into 12 subgroups (n = 10) according to the antagonists: steatite, polymer-infiltrated ceramic, or zirconia. Mechanical cycling (1.5 × 104 cycles; 15 N; horizontal displacement, 6 mm; 1.7 Hz) and flexural strength tests (1 mm/min–1000 kg cell) were performed. The differences between final and initial roughnesses (Ra, Rz, and Rsm), the mass loss, and the flexural strength data were individually analyzed by two-way ANOVA and Tukey's test (α = 0.05). Results: The roughnesses of all ceramics did not present a statistically significant difference before wear simulation: Ra (p = 0.3348), Rz (p = 0.5590), and Rsm (p = 0.5330). After the wear simulation, the Ra parameter was not affected by an interaction between ceramic and antagonist (p = 0.595). The Rz and Rsm parameters were affected only by the antagonist pistons (both, p = 0.000). The ceramics used in this study showed statistically significant differences in mass loss after the wear test (p < 0.0001). The additional firing (2 steps) of the ZLS2 led to a higher lost mass quantity. Conclusion: All ceramics presented similar initial roughnesses and similar roughnesses after the wear simulation. The zirconia antagonist showed better performance against ceramics with high crystalline content. Clinical Significance: It is clear that restorative materials must be carefully selected by dental practitioners according to indications, properties, and antagonists. The steatite antagonist, that is, an enamel analog, showed better performance against vitreous ceramics, while the zirconia antagonist showed better performance against ceramics with high crystalline content. Wear affects the surface roughnesses of the ceramics. Additional firing for the staining of the zirconia-reinforced lithium silicate ceramic led to a greater loss of mass.en
dc.description.affiliationDepartment of Dental Materials and Prosthodontics Institute of Science and Technology of Sao Jose dos Campos Sao Paulo State University (UNESP)
dc.description.affiliationDepartment of Restorative Dentistry & Prosthodontics The University of Texas Health Science Center at Houston (UTHealth) School of Dentistry
dc.description.affiliationDepartment of Physics Aeronautical Technology Institute (ITA)
dc.description.affiliationUnespDepartment of Dental Materials and Prosthodontics Institute of Science and Technology of Sao Jose dos Campos Sao Paulo State University (UNESP)
dc.identifierhttp://dx.doi.org/10.1111/jerd.13067
dc.identifier.citationJournal of Esthetic and Restorative Dentistry.
dc.identifier.doi10.1111/jerd.13067
dc.identifier.issn1708-8240
dc.identifier.issn1496-4155
dc.identifier.scopus2-s2.0-85159667444
dc.identifier.urihttp://hdl.handle.net/11449/248847
dc.language.isoeng
dc.relation.ispartofJournal of Esthetic and Restorative Dentistry
dc.sourceScopus
dc.subjectceramics
dc.subjectdental materials
dc.subjectdental restoration wear
dc.subjectroughness
dc.subjectstaining
dc.titleEffect of staining layer on roughness after progressive wear of monolithic ceramicsen
dc.typeArtigo
unesp.author.orcid0000-0002-1477-8599[3]

Arquivos

Coleções

Artigos - Materiais Odontológicos e Prótese - ICT