Effect of Sandblasting on the Long-Term Corrosion Resistance of Ti G4 in Artificial Saliva

Titanium Grade 4 (G4) is the most commonly used material for dental implants due to its excellent biocompatibility and mechanical properties. However, titanium require a rough surface that can increase biomechanical potential of implant–bone contact affect protein adsorption speed. In this work, effect sandblasting Ti G4 on long-term corrosion resistance in artificial saliva pH = 7.4 at 37 °C was studied. The X-ray diffraction (XRD) single-{hkl} sin2ψ method measure sandblasted residual stress. vitro tests were conducted 21 days using open circuit method, polarization curves, electrochemical impedance spectroscopy. Using Kelvin scanning probe, electron work function determined. Analysis obtained results showed an improvement compared with machine surface. related compressive stress 324.7 MPa present Sandblasting caused plastic deformation surface, which resulted properties, as evidenced by hardness