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
Amalgam (dentistry) by using database in the Cochrane Library where randomized controlled trials of few studies comparing dental resin composite with dental amalgams in permanent posterior teeth were compared. This review supports the fact that amalgam restorations are particularly useful and successful in parts of the world where amalgam is still the material of choice to restore posterior teeth with proximal caries. Though, there is insufficient evidence to support or refute any adverse effects amalgam may have on patients, new research is unlikely to change opinion on its safety and due to the decision for a global phase-down of amalgam (Minamata Convention