Nanosurface Modifacation of Biomedical β Titanium Alloy for Dental Implant and its Antibacterial Property

Yu Min Qi; Bai Hui Ma; Yue Jiao Geng; Jia Yin Deng; Chun Xiang Cui

doi:10.4028/www.scientific.net/AMR.904.142

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UV Curable Polyurethane Dispersions Extended by a New Chain Extender
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Nanosurface Modifacation of Biomedical β Titanium Alloy for Dental Implant and its Antibacterial Property
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Well-Defined Blackberry-Like Polypyrrole Microspheres via Chemical Oxidative Polymerization in the Presence of Functional Floating Bead as In Situ Dopant
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Nanosurface Modifacation of Biomedical β Titanium Alloy for Dental Implant and its Antibacterial Property

Abstract:

The TiO₂ nanotube array film was synthesized on the surface of Ti-Nb-Zr-Mo βTitanium alloy via anodic oxidation in single electrolytic solution only containing HF. The diameter of TiO₂nanotubes was 30-50nm, and the length was 240nm. Compared with the processing parameters (including anodizing voltage, reaction time, concentration and kinds of electrolytic solution) used for pure Titanium or Ti-6Al-4V alloy, the parameters was further optimized. The surface morphology and element compositions Ti-Nb-Zr-Mo alloy before and after anodic oxidation were observed and analyzed by a scanning electron microscope (SEM) and an energy dispersive X-ray (EDX) spectrometer. The antibacterial property of TiO₂ nanotube array film prepared with optimal conditions was evaluated by coculture in vitro between Actinomyces viscosus and materials tested. The results indicated that the TiO₂ nanotube array film had very good antibacterial activity to resist Actinomyces viscosus. TiO₂ nanotube array film/Ti-Nb-Zr-Mo βTi alloy biocomposite will be an more excellent dental implant owning good biomechanical adaptability, biocompatibility and antibacterial property.