A method for the control of galvanism

Galvanic currents between gold and amalgam

“…Thecorrosionof the amalgam may reduce its strength (4) and cause increased marginal breakdown of the filling (5). Tbe electric currents and possibly also tbe release of metal ions may cause oral discomfort in certain individuals (3,13,16,17). Less attention bas been paid to tbe influence of the relative surface areas of tbe gold (cathode) and amalgam (anode) in this context (8).…”