Many studies have confirmed the corrosion of dental alloys. Garhammer et al reported that specific metals such as silver, gold, chromium and others were higher in saliva of patients with metal restorations as in control patients. The researches stated that 'The metal content of saliva is affected among other things by intraoral metal restorations.*
Through saliva metal testing we can detect how amalgam metals of fillings or crowns are released into saliva. Systemic metal exposure should be confirmed through additional diagnostics.
*Garhammer P, Hiller KA, Reiginger T, Schmalz G. Metal content of saliva with and without metal restorations. Clinical Oral Investigations, Vol8, #4, 238-242