Abstrato

Inhibitive action of anise extract on the corrosion of dental amalgam alloy in artificial saliva media

A.Al Maofari, M.Mousaddak, A.Hakiki, Y.Suleiman, S.Gamouh, S.Zaydoun, S.El Hajjaji

The effect of natural extract of anise plants on the corrosion of dental amalgam in synthetic saliva was investigated by potentiodynamic polarisation techniques, weight loss measurements and surface analysis (SEM). Electrochemical study indicate that the plant extract behave as an anodic-type inhibitor. The corrosion rate of dental amalgam and the inhibition efficiencies of the extracts were calculated. The results obtained show that the extract solution of the anise plant could serve as an effective inhibitor for the corrosion of amalgam in saliva media. The inhibition efficiency was found to increase with extract concentration until 0.33g/L. The maximal protection efficiency exceeded 93%.