"A potential source of exposure to metallic mercury for the general population is mercury released from dental amalgam fillings."

"Estimates of the amount of mercury released from dental amalgams range from 3 to 17 micrograms per day (μg/day). The mercury from dental amalgam may contribute from 0 to more than 75% of your total daily mercury exposure,..."

"Metallic mercury is still used in some herbal or religious remedies in Latin America and Asia, and in rituals or spiritual practices in some Latin American and Caribbean religions such as Voodoo, Santeria, and Espiritismo. These uses may pose a health risk from exposure to mercury both for the user and for others who may be exposed to mercury vapors in contaminated air."