The use of mercury fillings has decreased by 30 percent in the last decade, but according to the American Dental Association, hundreds of millions of people still have them in their mouths. Even today, with all of the information pointing to mercury’s toxicity, dentists still use it to fill cavities of 50 million teeth each year. Mercury is a known neurotoxin, and its exposure is known to cause impaired cognitive skills, tremors and sleep disturbance in people with continued exposure, even at low levels. Even a short duration of mercury exposure can cause chest pain, cough, difficulty breathing, impaired lung function and negative effects to the central nervous system. So why is this substance still used in dentsitry?
http://www.assureasmile.com/miami-dentist-blog/are-mercury-fillings-safe
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