Silica coating on alumina ceramic: comparison of three chairside air-abrasion devices working for different times and distances.

dc.contributor.authorPestana Passos, S.
dc.contributor.authorDias Vanderlei, A.
dc.contributor.authorOzcan, M.
dc.contributor.authorFelipe Valandro, L.
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-27T11:25:30Z
dc.date.available2014-05-27T11:25:30Z
dc.date.issued2011-03-01
dc.description.abstractThis study evaluated, by scanning electron microscope (SEM) and EDS, the effect of different strategies for silica coating (sandblasters, time and distance) of a glass-infiltrated ceramic (In-Ceram Alumina). Forty-one ceramic blocks were produced. For comparison of the three air-abrasion devices, 15 ceramic samples were divided in three groups (N.=5): Bioart, Microetcher and Ronvig (air-abrasion parameters: 20 s at a distance of 10 mm). For evaluation of the time and distance factors, ceramic samples (N.=5) were allocated in groups considering three applied times (5 s, 13 s and 20 s) and two distances (10 mm and 20 mm), using the Ronvig device. In a control sample, no surface treatment was performed. After that, the micro-morphologic analyzes of the ceramic surfaces were made using SEM. EDS analyzes were carried out to detect the % of silica on representative ceramic surface. ANOVA and Tukey tests were used to analyze the results. One-way ANOVA showed the silica deposition was different for different devices (P=0.0054). The Ronvig device promoted the highest silica coating compared to the other devices (Tukey test). Two-way ANOVA showed the distance and time factors did not affect significantly the silica deposition (application time and distance showed no statistical difference). The Ronvig device provided the most effective silica deposition on glass-infiltrated alumina ceramic surface and the studied time and distance for air-abrasion did not affect the silica coating.en
dc.format.extent117-122
dc.identifierhttp://www.minervamedica.it/en/journals/minerva-stomatologica/article.php?cod=R18Y2011N03A0117
dc.identifier.citationMinerva stomatologica, v. 60, n. 3, p. 117-122, 2011.
dc.identifier.issn0026-4970
dc.identifier.scopus2-s2.0-79961008957
dc.identifier.urihttp://hdl.handle.net/11449/72335
dc.language.isoeng
dc.relation.ispartofMinerva stomatologica
dc.relation.ispartofsjr0,301
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.subjectsilicon dioxide
dc.subjectceramics
dc.subjectcomparative study
dc.subjectdental surgery
dc.subjectinstrumentation
dc.subjectmethodology
dc.subjecttime
dc.subjectAir Abrasion, Dental
dc.subjectCeramics
dc.subjectSilicon Dioxide
dc.subjectTime Factors
dc.titleSilica coating on alumina ceramic: comparison of three chairside air-abrasion devices working for different times and distances.en
dc.typeArtigo

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