Mechanical and chemical analyses across dental porcelain fused to CP titanium or Ti6Al4V

Souza, Júlio César Matias de; Henriques, Bruno; Ariza, Edith; Martinelli, Antonio Eduardo; Nascimento, Rubens Maribondo do; Silva, Filipe Samuel; Rocha, Luís A.; Celis, Jean-Pierre

Mechanical and chemical analyses across dental porcelain fused to CP titanium or Ti6Al4V

Página do item simplificado Estatísticas

dc.contributor.author	Souza, Júlio César Matias de
dc.contributor.author	Henriques, Bruno
dc.contributor.author	Ariza, Edith
dc.contributor.author	Martinelli, Antonio Eduardo
dc.contributor.author	Nascimento, Rubens Maribondo do
dc.contributor.author	Silva, Filipe Samuel
dc.contributor.author	Rocha, Luís A.
dc.contributor.author	Celis, Jean-Pierre
dc.date.accessioned	2020-03-20T14:49:26Z
dc.date.available	2020-03-20T14:49:26Z
dc.date.issued	2014
dc.description.resumo	The aim of this study was to evaluate the evolution of mechanical properties and chemical variation across veneering dental porcelain fused to different titanium-based substrates. Test samples were synthesized by fusing dental feldspar-based porcelain onto commercially pure titanium grade II or Ti6Al4V alloy. Samples were cross-sectioned at angles of 10 and 90° to the interface plane. Afterwards, nanoindentation tests and Scanning Electron Microscopy (SEM) imaging coupled to an Energy Dispersive Spectroscopy (EDS) system were carried out across interfaces extending from the metal towards the porcelain area. Elemental diffusion profiles across the porcelain-to-metal interfaces were also obtained by EDS analysis. The mismatch in mechanical properties found in porcelain-to-Ti6Al4V interfaces was lower than that of porcelain-to-CP titanium. Cracking was noticed at low-thickness veneering dental porcelain regions after the nanoindentation tests of samples cross-sectioned at low angles to the interface plane. A wide reaction zone between titanium and porcelain as well as higher incidence of defects was noticed at the porcelain-to-CP titanium interfaces. This study confirmed Ti6Al4V as an improved alternative to CP-titanium as it showed to establish a better interface with the veneering dental porcelain considering the slight chemical interaction and the lower mechanical properties mismatch. The elastic modulus of porcelain-to-Ti6Al4V samples showed to be less sensitive to porcelain thickness variations.	pt_BR
dc.identifier.citation	Souza, Júlio C.M. ; HENRIQUES, BRUNO ; ARIZA, EDITH ; Martinelli, Antonio E. ; Nascimento, Rubens M. ; SILVA, FILIPE S. ; ROCHA, LUÍS A. ; CELIS, JEAN-PIERRE . Mechanical and chemical analysis across dental porcelain fused to CP titanium or Ti6Al4V. Materials Science & Engineering. C, Biomimetic Materials, Sensors and Systems (Print), v. 37, p. 76-83, 2014. DOI: https://doi.org/10.1016/j.msec.2013.12.030. Disponível em: https://www.sciencedirect.com/science/article/pii/S0928493113006930?via%3Dihub. Acesso em: 20 mar. 2020.	pt_BR
dc.identifier.issn	0928-4931
dc.identifier.uri	https://repositorio.ufrn.br/jspui/handle/123456789/28599
dc.language	en	pt_BR
dc.publisher	Elsevier	pt_BR
dc.subject	Titanium	pt_BR
dc.subject	Dental porcelain	pt_BR
dc.subject	Metal–ceramic interface	pt_BR
dc.subject	Mechanical properties	pt_BR
dc.subject	Nanoindentation	pt_BR
dc.subject	Chemical analysis	pt_BR
dc.title	Mechanical and chemical analyses across dental porcelain fused to CP titanium or Ti6Al4V	pt_BR
dc.type	article	pt_BR