Development of binary and ternary titanium alloys for dental implants

Autor(es):Mostrar menos -

Cordeiro, Jairo M. ^{[1, 2, 3]} ; Beline, Thamara ^{[1, 2, 3]} ; Ribeiroc, Ana Lucia R. ^{[4, 5]} ; Rangel, Elidiane C. ^[6] ; da Cruz, Nilson C. ^[6] ; Landers, Richard ^[7] ; Faverani, Leonardo P. ^[8] ; Vaz, Luis Geraldo ^[9] ; Fais, Laiza M. G. ^[9] ; Vicente, Fabio B. ^{[2, 3, 10]} ; Grandini, Carlos R. ^{[2, 3, 11]} ; Mathew, Mathew T. ^{[12, 13, 2, 3]} ; Sukotjo, Cortino ^{[12, 2, 3]} ; Barao, Valentim A. R. ^{[1, 2, 3]}

Afiliação do(s) autor(es):Mostrar menos -

^[1] Univ Campinas UNICAMP, Piracicaba Dent Sch, Dept Prosthodont & Periodontol, Av Limeira 901, BR-13414903 Piracicaba, SP - Brazil

^[2] Tribocorros & Nanomed IBTN, Inst Biomat, Rio De Janeiro - Brazil

^[3] Tribocorros & Nanomed IBTN, Inst Biomat, Chicago, IL - USA

^[4] Fac Ciencias Tocantins FACIT, Rua D 25, Qd 11, Lt 10, BR-77818650 Araguaina, Tocantins - Brazil

^[5] ITPAC, FAHESA, Fac Ciencias Humanas Econ & Saude Araguaina, Av Filadelfia 568, BR-77816540 Araguaina, Tocantins - Brazil

^[6] Univ Estadual Paulista UNESP, Engn Coll, Lab Technol Plasmas, Av Tres Marco 511, BR-18087180 Sorocaba, SP - Brazil

^[7] Univ Campinas UNICAMP, Inst Phys Gleb Wataghin, BR-13083859 Campinas, SP - Brazil

^[8] Univ Estadual Paulista UNESP, Aracatuba Dent Sch, Dept Surg & Integrated Clin, R Jose Bonifacio 1193, BR-16015050 Aracatuba, SP - Brazil

^[9] Univ Estadual Paulista UNESP, Araraquara Dent Sch, Dept Dent Mat & Prosthodont, R Humaita 1680, BR-14801903 Araraquara, SP - Brazil

^[10] Univ Paulista UNIP, Av Nossa Sra de Fatima 9-50, BR-17017337 Bauru, SP - Brazil

^[11] Univ Estadual Paulista UNESP, Lab Anelasticidade & Biomat, Av Engn Luiz Edmundo Carrijo Coube, BR-17033360 Bauru, SP - Brazil

^[12] Univ Illinois, Coll Dent, Dept Restorat Dent, 801 S Paulina, Chicago, IL 60612 - USA

^[13] Univ Illinois, Coll Med Rockford, Dept Biomed Sci, 1601 Parkview Ave, Rockford, IL 61107 - USA

• Tipo de documento: Artigo Científico
• Fonte: Dental Materials; v. 33, n. 11, p. 1244-1257, NOV 2017.
• Citações Web of Science: 25

Resumo

Objective. The aim of this study was to develop binary and ternary titanium (Ti) alloys containing zirconium (Zr) and niobium (Nb) and to characterize them in terms of microstructural, mechanical, chemical, electrochemical, and biological properties. Methods. The experimental alloys - (in wt%) Ti-5Zr, Ti-10Zr, Ti-35Nb-5Zr, and Ti-35Nb-10Zr-were fabricated from pure metals. Commercially pure titanium (cpTi) and Ti-6Al-4V wereused as controls. Microstructural analysis was performed by means of X-ray diffraction and scanning electron microscopy. Vickers microhardness, elastic modulus, dispersive energy spectroscopy, X-ray excited photoelectron spectroscopy, atomic force microscopy, surface roughness, and surface free energy were evaluated. The electrochemical behavior analysis was conducted in a body fluid solution (pH 7.4). The albumin adsorption was measured by the bicinchoninic acid method. Data were evaluated through one-way ANOVA and the Tukey test (alpha = 0.05). Results. The alloying elements proved to modify the alloy microstructure and to enhance the mechanical properties, improving the hardness and decreasing the elastic modulus of the binary and ternary alloys, respectively. Ti-Zr alloys displayed greater electrochemical stability relative to that of controls, presenting higher polarization resistance and lower capacitance. The experimental alloys were not detrimental to albumin adsorption. Significance. The experimental alloys are suitable options for dental implant manufacturing, particularly the binary system, which showed a better combination of mechanical and electrochemical properties without the presence of toxic elements. (C) 2017 The Academy of Dental Materials. Published by Elsevier Ltd. All rights reserved. (AU)

• Processo FAPESP: 16/11470-6 - Deposição por pulverização catódica de filmes de óxido de tântalo (Ta2O5) na superfície de titânio para aplicações biomédicas: comportamento eletroquímico, biocompatibilidade e análise microbiológica
• Beneficiário: Valentim Adelino Ricardo Barão
• Modalidade de apoio: Auxílio à Pesquisa - Regular
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• Beneficiário: Valentim Adelino Ricardo Barão
• Modalidade de apoio: Auxílio à Pesquisa - Regular
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• Beneficiário: Jairo Matozinho Cordeiro
• Modalidade de apoio: Bolsas no Brasil - Mestrado