Effect of thermal cycling on fracture toughness of CAD/CAM materials

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorPorto, Thiago Soares-
Autor(es): dc.creatorRoperto, Renato Cassio-
Autor(es): dc.creatorAkkus, Anna-
Autor(es): dc.creatorAkkus, Ozan-
Autor(es): dc.creatorTeich, Sorin-
Autor(es): dc.creatorFaddoul, Fady F.-
Autor(es): dc.creatorPorto-Neto, Sizenando de Toledo-
Autor(es): dc.creatorCampos, Edson Alves de-
Data de aceite: dc.date.accessioned2021-03-10T23:59:04Z-
Data de disponibilização: dc.date.available2021-03-10T23:59:04Z-
Data de envio: dc.date.issued2018-11-26-
Data de envio: dc.date.issued2018-11-26-
Data de envio: dc.date.issued2018-08-01-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/164600-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/164600-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionCAPES: 99999.008214/201400-
Descrição: dc.descriptionPurpose: To compare the fracture toughness of four different CAD/CAM materials, (VM) Vitablocs Mark II, (IP) IPS e.max CAD, (LU) LAVA Ultimate, and (VE) Vita Enamic under long thermocycling conditions. Methods: Each type of ceramic block was sectioned into beams (n=9) with dimensions of 14x3 x2.5 mm (L X W x H). All four ceramics were submitted to different conditions: the desiccator or distilled water, each for 7 days. The third and fourth conditions involved the specimens being submitted to 60,000 and 120,000 thermocycles in water respectively. The dwelling time was 52 seconds at 5 and 55 degrees C. A three-point bend test with a universal loading machine on notched samples was performed. Furthermore, a fractographic analyses was made by scanning electron microscopy (SEM) to determine if any of these conditions influenced the type of fracture. Data were analyzed by two-way ANOVA (alpha= 0.05). Results: A significant difference in fracture toughness (P< 0.05) was found among the groups; IP (4.20 +/- 1.23) had the highest value followed by VE (2.02 +/- 0.39), which did not have a statistically significant difference from LU (1.96 +/- 0.42). The lower value and statistical difference for VM was 1.52 +/- 0.35. The ceramics performed better after they were hydrated, while the polymer based materials had the fracture toughness means decreased after the thermocycles.-
Formato: dc.format205-210-
Idioma: dc.languageen-
Publicador: dc.publisherMosher & Linder, Inc-
Relação: dc.relationAmerican Journal Of Dentistry-
Relação: dc.relation0,509-
Direitos: dc.rightsclosedAccess-
Título: dc.titleEffect of thermal cycling on fracture toughness of CAD/CAM materials-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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