Rugosidade da superfície e contração volumétrica de uma cerâmica Y-TZP sinterizada por energia de microondas e por aquecimento resistivo

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorBarchetta, Nayara-
Autor(es): dc.creatorNanni, Larissa-
Autor(es): dc.creatorMiranda, Jean-
Autor(es): dc.creatorLazar, Dolores-
Autor(es): dc.creatorAssui, Valter-
Autor(es): dc.creatorSaavedra, Guilherme-
Data de aceite: dc.date.accessioned2021-03-11T00:34:35Z-
Data de disponibilização: dc.date.available2021-03-11T00:34:35Z-
Data de envio: dc.date.issued2018-12-11-
Data de envio: dc.date.issued2018-12-11-
Data de envio: dc.date.issued2017-01-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.14295/bds.2017.v20i4.1481-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/170535-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/170535-
Descrição: dc.descriptionObjectives: The aim of this study was to evaluate a Y-TZP ceramic sintered by a microwave protocol on volume shrinkage and surface roughness. Material and Methods: Twenty four (N=24) Y-TZP discs were fabricated by milling in CAD/ CAM for size standardization. The mean final dimensions of the specimens were 15 mm X 1.6 mm. Samples were divided into 2 groups (n=12): conventional resistive heating sintering protocol (C - Control) and microwave sintering protocol (MO - experimental). For the characterization of the specimens, surface roughness (Ra and Rz parameters) was evaluated with a roughness tester, and volume shrinkage was measured with a hand micrometer. Data were statistically evaluated by Student’s t and Mann-Whitney U tests (α=0.05). Results: The roughness results were: 0.25 μm ± 0.02 (Ra) and 2.68 μm ± 0.666 (Rz) for the MO samples; 0.26 μm ± 0.04 (Ra) and 2.73 μm ± 0.461 (Rz) for the C group (Ra: p = 0.19; Rz: p = 0.81). The shrinkage results was: MO (21.02% ± 2.70) and C (20.10% ± 0.52) (p = 0.274). Conclusion: The conventional and microwave sintering methods were similar regarding surface roughness and volume shrinkage of Y-TZP dental ceramic.-
Formato: dc.format124-129-
Idioma: dc.languageen-
Relação: dc.relationBrazilian Dental Science-
Direitos: dc.rightsclosedAccess-
Palavras-chave: dc.subjectBioceramics-
Palavras-chave: dc.subjectMicrowave sintering-
Palavras-chave: dc.subjectRoughness surface-
Palavras-chave: dc.subjectZirconia-
Título: dc.titleRugosidade da superfície e contração volumétrica de uma cerâmica Y-TZP sinterizada por energia de microondas e por aquecimento resistivo-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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