Effect of PMMA sealing treatment on the corrosion behavior of plasma electrolytic oxidized titanium dental implants in fluoride-containing saliva solution

Abstract Titanium (Ti) and its alloys are widely used as dental implant materials because of their high mechanical properties, biocompatibility, corrosion resistance. This research was undertaken to study the effect polymethyl-methacrylate (PMMA) sealing layer on performance plasma electrolytic oxidation (PEO)-coated titanium-based implants in pure saliva fluoride-containing solutions. The phase structure, chemical composition, microstructure coatings were investigated via x-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, respectively. behavior samples evaluated by open circuit potential, potentiodynamic polarization, electrochemical impedance spectroscopy tests. deposition PMMA PEO-coated Ti found effectively seal micropores microcracks TiO 2 block corrosive ions’ penetration routes through coating. Thereby, results indicated that better observed when is applied than simple PEO coatings.