Anti-corrosion of isothermally treated Ti-6Al-4V alloy as dental biomedical implant using non-toxic bitter leaf extract

This research evaluates the potentials of Ti-6Al-4V as a dental implant in simulated saliva + fluoride and varying of bitter leaf (Vernomia amygdalina) extract as inhibitor. The samples were solution heat treated at 960 °C and accompanied by an aging process at 480 °C for 2 h soaking time. The coupons were subjected to corrosion test in simulated saliva using a potentiostat corrosion kit. The coupons were immersed into the saliva + 1 g of sodium fluoride and bitter leaf extract. The optimum condition was obtained at 1.5 ml inhibitor addition indicating 97.8% corrosion reduction.