Many countries have already been considering similar measures, due to the significant use and release of dental mercury pollution globally. A 2012 report for the European Commission (EC) recommended phasing out amalgam in five years. 
The EC BIOS report also noted that mercury-free fillings appear more expensive than amalgam because of the negative external costs. Amalgam's negative environmental effects are known and ultimately, society pays for the uncontrolled release of dental mercury, as explained in our 2012 report. 
According to the United Nations Environment Programme (UNEP), the use of mercury in tooth fillings represents some 10% of global mercury consumption, thus being among the largest consumer uses of mercury in the world. UNEP estimates global use of dental mercury at between 300 – 400 metric tonnes per year.
Endnotes: http://www.unep.org/hazardoussubstances/MercuryNot/MercuryNegotiations/tabid/3320/language/en-US/Default.aspx  European Commission report by BIOS: http://ec.europa.eu/environment/chemicals/mercury/pdf/Final_report_11.07.12.pdf  "Real Cost of Dental Mercury Pollution," by Concorde: http://mercurypolicy.org/wp-content/uploads/2012/04/real_cost_of_dental_mercury_april_2012-final.pdf  MAP/UNEP 2008 www.mercurypolicy.org SOURCE Mercury Policy Project