Dental amalgam, that silver filling they use to fill in teeth using mercury and another compound has always maintained it’s presence in the circles of debate regarding safety issues. Primarily because of mercury, the key ingredient in the tooth filling but some opponents of the use of such materials have gone a step further, the issue of mercury taken out of fillings entering the sewers and eventually into the rivers and streams contaminating food sources and other areas.
Such is the concern of dentists that some groups are making the use of mercury separators for their dental offices to remove the toxic metal from waste water eliminating it from the environment. Mercury has been found to cause not only cancer but neurological issues with fetuses. it has also been found in fish caught in far away seas making their impact widespread.