Titanium and Ti-based alloys, especially Ti-6Al-4V, are widely accepted for the manufacture of orthopedic and dental implants due to their excellent mechanical, physical and chemical properties. However, a new generation of alloys, without aluminum and vanadium, has increased the interest in Medicine. In the oral environment, the success of these alloys depends on the response to thermal, ionic, microbiological and enzymatic interactions, as well as the resistance to masticatory stress. Thus, the aim of this study is to analyze the mechanical properties (Vickers hardness, tensile strength and tensile load cycling) of Ti-6Al-4V e Ti-35Nb-7Zr-5Ta alloys, and also characterize their surfaces by means of of chemical composition (X-ray Fluorescence Microscopy and/or Plasma Emission Spectrometry), the crystal structure (X-ray Diffraction), the phase morphology (Optical Microscopy), topography surface (Scanning Electron Microscopy and Atomic Force Microscopy) and roughness. Additionally, all the above analysis will be conducted after exposure to fluoride solution (NaF, 1500 ppm and pH 5.5) simulating a potentially unfavorable and commonly condition found in the oral environment. Two periods of exposure to fluoride will be simulated: 5 and 10 years.
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