That is why the U.S. Food and Drug Administration's advisory panel on dental amalgam in December 2010 warned against the use of amalgam in vulnerable populations and insisted that FDA had a duty to disclose amalgam's risks to parents and consumers. As panelist Dr. Suresh Kotagal – a pediatric neurologist at the Mayo Clinic – summed it up, there is "no place for mercury in children." The FDA panelists are not alone. Other countries are already working to protect vulnerable populations, especially children, from exposure to amalgam.

Exposure to mercury can seriously affect the health of both patients and dental professionals, and early exposure to low doses of mercury (during pregnancy and through breastfeeding) increases the risk of a decrease in the intelligence quotient (IQ) among children.… According to the World Health Organization in 2005, certain studies show that mercury may have no threshold below which some adverse effects do not occur."2

It is known that the mercury from amalgam can cause reproductive harm – dental mercury even crosses the placenta and accumulates in unborn babies. Due to mercury exposure from amalgam in the workplace, dental workers – including dentists, dental hygienists, and dental assistants – are at particular risk for suffering reproductive harm. Studies have shown that dental workers have elevated systemic mercury levels.6 Many of these dental workers are women of child-bearing age, which makes them particularly susceptible to the occupational hazards associated with handling mercury.

Even if you do not have amalgam in your mouth, your health is still at risk from amalgam. Amalgam leaches into the environment via multiple pathways, polluting our water via dental clinic releases and human waste; our air via cremation, dental clinic emissions, sludge incineration, and respiration; and our land via landfills, burials, and fertilizer. Once in the environment, dental mercury converts to its even more toxic form, methylmercury, and becomes a major source of mercury in the fish people and other animals eat.

Research has shown that if you do not take proper safety precautions during the removal process, mercury levels in your blood can rise three to four-fold, which may result in acute toxicity. Hence, it's extremely important to find a biological dentist that is trained in properly removing mercury fillings

I do not understand why so many dentists still use this filling.