THE INFLUENCE OF ELECTRICAL POTENTIAL WITHIN THE ORAL CAVITY ON THE INCIDENCE OF SUBJECTIVE SYMPTOMS

For the purpose of this study, electronic endodontic instrument (EED) was used for measuring the height of the electric potential of the gin giva, of the fresh amalgam fillings, of the seven day old fillings, be fore and after polishing. Four hundred (400) fillings in 187 patients were examined. The aim was to establish the quality of the subjective and objective discomforts as well as influence of prosthetic metals (g old, palador) in the oral cavity on voltage of the electric potential and on occurrence of discomforts. The difference in potential between the fresh, polished and unpolished fillings was statistically signific ant in all amalgams tested. Electric potential of the amalgam fillings decreases due to aging and polishing. Subjective discomforts were pre sent in 1.2% of the total number of cases and in 6.7% of the patients tested, having prosthetic metals in the mouth.