The World Health Organization (WHO)
estimates that the typical absorbed dose of mercury from amalgams is one to twenty - two micrograms per day, with most values in the
range of one to five micrograms per day.16 Various factors, including gum chewing and bruxism, can increase these exposures to an upper
range of about one hundred micrograms per day.7 Preliminary evidence also suggests that certain types of electromagnetic radiation, including EMR from mobile phones and from magnetic resonance imaging (MRI) may increase the release of mercury vapor from
dental amalgams.17