Analysis of depth of the microporosity in a nickel-chromium system alloy: effects of electrolytic, chemical and sandblasting etching

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorNeto, H. G.
dc.creatorCandido, MSM
dc.creatorJunior, ALR
dc.creatorGarcia, Patrícia Petromilli Nordi Sasso
dc.date2014-05-20T13:47:15Z
dc.date2016-10-25T17:00:44Z
dc.date2014-05-20T13:47:15Z
dc.date2016-10-25T17:00:44Z
dc.date2003-05-01
dc.date.accessioned2017-04-05T20:57:04Z
dc.date.available2017-04-05T20:57:04Z
dc.identifierJournal of Oral Rehabilitation. Oxford: Blackwell Publishing Ltd, v. 30, n. 5, p. 556-558, 2003.
dc.identifier0305-182X
dc.identifierhttp://hdl.handle.net/11449/16795
dc.identifierhttp://acervodigital.unesp.br/handle/11449/16795
dc.identifier10.1046/j.1365-2842.2003.01102.x
dc.identifierWOS:000182653800018
dc.identifierhttp://dx.doi.org/10.1046/j.1365-2842.2003.01102.x
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/863503
dc.descriptionThe present study was designed to analyse the average depth of the microporosity of a nickel-chromium (Ni-Cr) system alloy (Verabond II). The metal surface was subject to one of the following surface treatment: (i) Electrolytic etching in nitric acid 0.5 N at a current density of 250 mA cm(-2) ; (ii) chemical etching with CG-Etch etchant; and (iii) Sandblasting with alumina particles 50 mum. Half of the samples were polished before the surface treatments. The depth of porosity was measured through photomicrographs (500x) with a profilometer, and the data were statistically analysed using an analysis of variance (anova) followed by Tukey's test. The conclusions were (i) Differents surface treatment of the Ni-Cr system alloy lead to different depths of microporosity; (ii) the greatest depth of porosity was observed in non-polished alloy; (iii) the greatest and identical depth of microporosity was observed following electrolytic etching and chemical etching; (iv) the least and identical depth of microporosity was observed with chemical etching and sandblasting with alumina particles 50 mum, and (v) Chemical etching showed an intermediary depth.
dc.languageeng
dc.publisherBlackwell Publishing
dc.relationJournal of Oral Rehabilitation
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectresin bonded bridge
dc.subjectelectrolytic etching
dc.subjectchemical etching
dc.subjectsandblasting
dc.titleAnalysis of depth of the microporosity in a nickel-chromium system alloy: effects of electrolytic, chemical and sandblasting etching
dc.typeOtro


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