Feasibility of 3D printed Co-Cr alloy for dental prostheses applications

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual de Campinas (UNICAMP)-
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.creatorCamacho Presotto, Anna Gabriella-
Autor(es): dc.creatorCordeiro, Jairo Matozinho-
Autor(es): dc.creatorCamacho Presotto, Joao Gabriel [UNESP]-
Autor(es): dc.creatorRangel, Elidiane Cipriano [UNESP]-
Autor(es): dc.creatorCruz, Nilson Cristino da [UNESP]-
Autor(es): dc.creatorLanders, Richard-
Autor(es): dc.creatorBarao, Valentim Adelino R.-
Autor(es): dc.creatorMesquita, Marcelo Ferraz-
Data de aceite: dc.date.accessioned2022-02-22T00:58:31Z-
Data de disponibilização: dc.date.available2022-02-22T00:58:31Z-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-05-05-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.jallcom.2020.158171-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/210089-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/210089-
Descrição: dc.descriptionThe aim of this study was to characterize the surface, microstructural, mechanical, and electrochemical properties of Selective Laser Melting (SLM) 3D-printed Co-Cr alloy when compared with casting and Soft Metal Block (SMB) milling techniques for dental prostheses applications. Specimens with specific dimensions were fabricated by cast, SMB, and SLM technologies with their respective commercially available Co-Cr alloys. Several techniques were carried out to characterize the specimens in terms of surface morphology, chemical composition, microstructure, surface free energy, and mechanical properties. Metal-ceramic bond strength was evaluated with the 3-point bend test. Standard electrochemical tests were conducted in artificial saliva (pH of 6.5). Data were evaluated at a significance level of 5%. Similar microstructure patterns (gamma-phases and epsilon-phases), surface morphology, roughness, and surface free energy were observed among groups (p > 0.05, ANOVA). The elemental composition provided by energy-dispersive spectroscopy confirmed the manufacturer's information on the alloys used. SLM technology provided a fine-grained homogeneous and less porous microstructure. Xray photoelectron spectroscopy analysis suggested a thicker oxide film on SLM surfaces. Highest values of Vickers microhardness, flexural strength, elastic modulus, and metal-ceramic bond strength were found for the SLM group (p < 0.05, Tukey's HSD test). The SLM group displayed greater electrochemical stability, presenting higher polarization resistance (Rp(tot)), corrosion potential (E-corr), and pitting potential (E-pit) values (p < 0.05, Tukey's HSD test). SLM technology revealed feasible surface, microstructural, mechanical, and electrochemical properties and can be a promising option for the fabrication of dental prostheses. (C) 2020 Elsevier B.V. All rights reserved.-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionUniv Estadual Campinas, Piracicaba Dent Sch, Dept Prosthodont & Periodontol, Piracicaba, SP, Brazil-
Descrição: dc.descriptionSao Paulo State Univ, Dept Stat Appl Math & Comp, Rio Claro, SP, Brazil-
Descrição: dc.descriptionSao Paulo State Univ, Lab Technol Plasmas LaPTec, Inst Sci & Technol Sorocaba, Sorocaba, SP, Brazil-
Descrição: dc.descriptionUniv Estadual Campinas, Inst Phys Gleb Wataghin, Cidade Univ Zeferino Vaz Barao Geraldo, Campinas, SP, Brazil-
Descrição: dc.descriptionSao Paulo State Univ, Dept Stat Appl Math & Comp, Rio Claro, SP, Brazil-
Descrição: dc.descriptionSao Paulo State Univ, Lab Technol Plasmas LaPTec, Inst Sci & Technol Sorocaba, Sorocaba, SP, Brazil-
Descrição: dc.descriptionFAPESP: 2016/23490-1-
Descrição: dc.descriptionCAPES: 001-
Formato: dc.format13-
Idioma: dc.languageen-
Publicador: dc.publisherElsevier B.V.-
Relação: dc.relationJournal Of Alloys And Compounds-
???dc.source???: dc.sourceWeb of Science-
Palavras-chave: dc.subjectSelective laser melting-
Palavras-chave: dc.subjectCobalt-chromium alloys-
Palavras-chave: dc.subjectDental application-
Palavras-chave: dc.subjectPhysicochemical properties-
Título: dc.titleFeasibility of 3D printed Co-Cr alloy for dental prostheses applications-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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