Influence of surface treatments in flexural strength and superficial topography of a lithium disilicate ceramic

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.creatorRossi, Natália Rivoli [UNESP]-
Autor(es): dc.creatorSato, Tabata do Prado [UNESP]-
Autor(es): dc.creatorMarinho, Caroline Cotes [UNESP]-
Autor(es): dc.creatorMacedo, Vanessa da Cruz [UNESP]-
Autor(es): dc.creatorPaes Junior, Tarcísio José de Arruda [UNESP]-
Autor(es): dc.creatorKimpara, Estevão Tomomitsu [UNESP]-
Data de aceite: dc.date.accessioned2022-02-22T00:27:31Z-
Data de disponibilização: dc.date.available2022-02-22T00:27:31Z-
Data de envio: dc.date.issued2020-12-11-
Data de envio: dc.date.issued2020-12-11-
Data de envio: dc.date.issued2019-01-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.14295/bds.2019.v22i3.1678-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/199494-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/199494-
Descrição: dc.descriptionObjective: The aim of the study was to evaluate the influence of different surface post-etching treatments in flexural strength, contact angle and surface roughness of a lithium disilicate ceramic. Material and Methods: 60 bars (16 × 2 × 4 mm) were divided in six groups (n=10): C, no treatment; HF, hydrofluoric acid for 20 s (HF) + washing (60 s), drying (30s); HFL, HF + washing (60 s), drying (30 s) and luting; HFNL, HF + washing (60 s) + neutralization with sodium bicarbonate (SB) for 40 s + washing (5s), drying (30 s) and luting; HFUL, HF + washing (60 s) + ultrasonic bath (UB) for 4 min, drying (30 s) and luting; HFNUL, HF + washing (60 s) + SB (40 s) + UB (4 min) and luting. The bars were submitted to three-points flexural strength test. 25 ceramic blocks (12 × 7 × 7 mm) were divided into five groups (n=5) to evaluate roughness and contact angle C - no treatment; HF - HF; HFU - HF and UB for 5 min; HFN - HF and SB; HFNU - HF, UB and SB. A scanning electron microscope (SEM) showed the surface of the samples. ANOVA one-way statistical analysis was done for comparison of results. Results: There was no statistical difference for flexural strength (p-value = 0.15) and for surface roughness (p-valor = 0.15). However, it was obtained statistically significant difference for contact angle (p-valor = 0.00). SEM images showed precipitates after the acid etching, which were removed by post-etching treatments. Conclusion: It can be concluded that the different post-etching surface treatments did not increase the flexural strength, surface roughness, but it influenced the ceramic wetting and SEM images.-
Descrição: dc.descriptionUniv Estadual Paulista (Unesp) Institute of Science and Technology-
Descrição: dc.descriptionUniv Estadual Paulista (Unesp) Institute of Science and Technology Department of Dental Materials and Prosthodontics - São José dos Campos-
Descrição: dc.descriptionUniv Estadual Paulista (Unesp) Institute of Science and Technology-
Descrição: dc.descriptionUniv Estadual Paulista (Unesp) Institute of Science and Technology Department of Dental Materials and Prosthodontics - São José dos Campos-
Formato: dc.format305-312-
Idioma: dc.languageen-
Relação: dc.relationBrazilian Dental Science-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectContact angle-
Palavras-chave: dc.subjectHydrofluoric acid-
Palavras-chave: dc.subjectLithium disilicate-
Palavras-chave: dc.subjectScanning electron microscope-
Palavras-chave: dc.subjectSurface roughness-
Palavras-chave: dc.subjectUltrasonic bath-
Título: dc.titleInfluence of surface treatments in flexural strength and superficial topography of a lithium disilicate ceramic-
Título: dc.titleInfluência dos tratamentos de superfície na resistência à flexão e na topografia superficial de uma cerâmica de dissilicato de lítio-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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