Influence of simulated body fluid (normal and inflammatory) on corrosion resistance of anodized titanium




Titanium; Dental Implants; Corrosion; Body fluids.


Titanium has been widely used as biomaterial, especially in implantables, in which osseointegration and corrosion resistance are needed. Studies have shown that the thickness and roughness of porous titanium oxides are related to the osseointegration. According to the literature, the best anodizing conditions for obtaining nanotubes in titanium oxide are the use of a voltage of 10V in an electrolyte containing 0.15% HF in H3PO4 (w/v). In this study, was to evaluate the corrosion capacity of simulated body fluid (SBF) over titanium samples anodized on 1 mol. L-1 H3PO4 and 0.15% HF (w/v) in 1 mol.L-1 H3PO4. To perform these evaluations samples of commercially pure titanium grade 2 were used. Samples were analyzed by scanning electron microscopy, atomic force microscopy and by electrochemical corrosion tests in healthy and simulating inflammatory conditions. The hydrophobicity of oxides was tested by sessile drop essay, also using SBF. Results show that oxides obtained in H3PO4 electrolyte, barrier type oxides, work better than the porous oxides obtained in H3PO4/HF electrolyte, suggesting that barrier oxide exhibit more biomaterial characteristics than the porous oxide. These results agree with previous studies, and stand out mainly in relation to the tests performed under inflammatory conditions, more aggressive to the biomaterial.


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How to Cite

KUNST, S. R. .; CERVEIRA, D. de O.; FERREIRA, J. Z.; GRAEF, T. F. .; SANTANA, J. de A. .; CARONE, C. L. P. .; MORISSO, F. D. P. .; OLIVEIRA, C. T. . Influence of simulated body fluid (normal and inflammatory) on corrosion resistance of anodized titanium . Research, Society and Development, [S. l.], v. 10, n. 10, p. e122101018606, 2021. DOI: 10.33448/rsd-v10i10.18606. Disponível em: Acesso em: 18 oct. 2021.