Electrochemical characteristics of the S.I.A. dental amalgam cavity liner

Selective interfacial amalgamation (S.I.A.) has been developed as a dental amalgam cavity liner with the intent of increasing the restoration-tooth adhesion and reducing the debilitating effects of corrosion and marginal leakage. This paper examines the S.I.A. liner's effectiveness as a corrosion preventive cavity liner by two experimental techniques: anodic polarization and differential aeration tests. The results from these tests indicate that S.I.A. does enhance the corrosion resistance of a dental amalgam.