Dental amalgam controversy of discarded mercury and dental amalgam a mere 0.56 percent". Mercury is an environmental contaminant and the WHO, OSHA, and NIOSH have established specific occupational exposure limits. Mercury imposes health risks upon the surrounding population. In economics, this pollution is considered an external cost not factored into the private costs of using mercury-based products. Environmental risks from amalgam can be mitigated by amalgam separators and the ISO has issued standards regarding the proper handling and disposal of amalgam waste. It should be noted, however, that mercury is a naturally occurring element that is present throughout the environment and the vast
Dental amalgam controversy they contain Bis-phenol A (BPA) a chemical known to cause reproductive toxicity at high doses. In Canada, amalgam use is considered safe and effective. A 2005 position statement from the Canadian Dental Association (CDA) states that "current scientific evidence on the use of dental amalgam supports that amalgam is an effective and safe filling material that provides a long-lasting solution for a broad range of clinical situations. The CDA has established its position based on the current consensus of scientific and clinical experts and on recent extensive reviews of strong evidence by major North American and international organizations, which have