Effect of Sodium Fluoride on the Stability of Dental Alloys in Artificial Saliva
نویسندگان
چکیده
Dental alloys as CoCrMo, SS 316L stainless steel and NiTi were electrochemically investigated in artificial Fusayama saliva, unmodified and modified with two different concentrations of natrium fluoride. Electrochemical tests include measurements of open circuit, measurements of linear polarization, potentiodinamic polarization curves and electrochemical impedance spectra. The best electrochemical behavior with a good corrosion resistance was found for the CoCrMo alloy, followed by stainless steel alloy. NiTi alloy was the most affected by the addition of fluoride ad the corrosion rate decreased dramatically. Based on our experimental data we can conclude that the addition of sodium fluoride increases the corrosion rate.
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