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Metals 2017, 7(5), 167; doi:10.3390/met7050167

TiO2 Nanotubes on Ti Dental Implant. Part 1: Formation and Aging in Hank’s Solution

Deptartment of Chemical Engineering, Materials and Industrial Production, University of Napoli Federico II, Piazzale Tecchio 80, 80125 Napoli, Italy
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Academic Editor: Bobby Kannan Mathan
Received: 11 April 2017 / Revised: 4 May 2017 / Accepted: 8 May 2017 / Published: 11 May 2017
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Abstract

Self-organized TiO2 nanotube layer has been formed on titanium screws with complex geometry, which are used as dental implants. TiO2 nanotubes film was grown by potentiostatic anodizing in H3PO4 and HF aqueous solution. During anodizing, the titanium screws were mounted on a rotating apparatus to produce a uniform structure both on the peaks and on the valleys of the threads. X-ray diffraction (XRD), Scanning electron microscopy (SEM), Energy dispersive X-ray (EDX) and electrochemical characterization were used to evaluate the layer, chemical composition and electrochemical properties of the samples. Aging in Hank’s solution of both untreated and nanotubes covered screw, showed that: (i) samples are covered by an amorphous oxide layer, (ii) the nanotubes increases the corrosion resistance of the implant, and (iii) the presence of the nanotubes catalyses the formation of chemical compounds containing Ca and P. View Full-Text
Keywords: dental implant; titanium nanotubes; electrochemical properties; aging in Hank’s solution dental implant; titanium nanotubes; electrochemical properties; aging in Hank’s solution
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Monetta, T.; Acquesta, A.; Carangelo, A.; Bellucci, F. TiO2 Nanotubes on Ti Dental Implant. Part 1: Formation and Aging in Hank’s Solution. Metals 2017, 7, 167.

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