Y-TZP surface behavior under two different milling systems and three different accelerated aging protocols

Registro completo de metadados
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorDal Piva, Amanda M.-
Autor(es): dc.creatorTribst, Joao Paulo-
Autor(es): dc.creatorGondim, Laisa D.-
Autor(es): dc.creatorRibeiro, Isabella L.-
Autor(es): dc.creatorCampos, Fernanda-
Autor(es): dc.creatorArata, Anelyse-
Autor(es): dc.creatorSouza, Rodrigo O.-
Data de aceite: dc.date.accessioned2021-03-11T01:31:36Z-
Data de disponibilização: dc.date.available2021-03-11T01:31:36Z-
Data de envio: dc.date.issued2019-10-06-
Data de envio: dc.date.issued2019-10-06-
Data de envio: dc.date.issued2018-12-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.23736/S0026-4970.18.04138-9-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/187122-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/187122-
Descrição: dc.descriptionBACKGROUND: To evaluate the influence of aging and milling system on zirconia surface roughness (SR) and phase transformation. METHODS: Eighty crowns were divided in two groups according to yttria-stabilized tetragonal zirconia polycrystalline (Y-TZP) ceramic milling system (CAD-Neodent or MAD-Zirkonzahn). The crowns were submitted to different aging protocols (N.=10): 1) no aging; 2) autoclaving; 3) pH cycling; or 4) thermocycling. Next, the samples were submitted to an optical profilometry analysis to determine differences in the S R (um). A n X-ray diffraction analysis (XRD) was performed to quantify the percentage of monoclinic phase transformation. SR data was analyzed by two-way A NOVA (a=0.5%). RESULTS: Aging protocol (P=0.42) and milling system (P=0.08) had no influence on the SR. However, the number of monoclinic phases was influenced by the autoclaving and pH cycling. CONCLUSIONS: The surface roughness of zirconia-based crowns was not influenced by low temperature degradation or milling system. Regarding the phase transformation, autoclaving and pH-cycling aging presented a monoclinic phase increase when compared to the control group and thermocycled groups.-
Formato: dc.format234-245-
Idioma: dc.languageen-
Relação: dc.relationMinerva Stomatologica-
Direitos: dc.rightsclosedAccess-
Palavras-chave: dc.subjectDental materials-
Palavras-chave: dc.subjectProsthodontics-
Palavras-chave: dc.subjectSurface properties-
Palavras-chave: dc.subjectYttria-stabilized tetragonal zirconia-
Título: dc.titleY-TZP surface behavior under two different milling systems and three different accelerated aging protocols-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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