The electrochemical corrosion of TiO_2 nanotubes in artificial saliva

Anodic oxidation was adopted to prepare TiO2 nanotube layers on pure titanium and analysed the surface morphology of TiO2 nanotube layers using the scanning electronic microscope (SEM). A three-electrode system was adopted to test the corrosion resistance of nanotubes in artificial saliva of different pH (by contrast with the pure titanium). The results showed that TiO2 nanotubes/Ti had very good corrosion resistance in the artificial saliva of different pH like pure titanium. The corrosion resistance of TiO2 nanotubes/Ti-based materials were slightly better than pure titanium.in the acidic artificial saliva of pH 5.5. As a dental biomaterial,TiO2 nanotube layers/Ti biomedical materials has better application prospects.