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Dental Amalgam

The ADA works with lawmakers, regulators, public health officials, and others to safeguard patient access to the safest and most affordable and durable dental materials for their specific treatment needs. This includes the option to use dental amalgam, which the scientific community has extensively reviewed and affirmed to be a safe and effective restorative material.

Moreover, the ADA encourages dental offices to follow its Best Management Practices for Amalgam Waste, which will help reduce discharges of used amalgam into dental office wastewater.

Letters and Testimony

  • September 30, 2014Statement on the Environmental Protection Agency (EPA) proposed rule addressing the amount of dental amalgam released into wastewater systems.
  • September 26, 2014—ADA News article on the Environmental Protection Agency (EPA) proposed rule addressing the amount of dental amalgam released into wastewater systems. (Sidebar: House of Delegates principles for developing a national pretreatment standard for dental office wastewater.)
  • December 15, 2010—Testimony of Drs. Rod Mackert (PDF) and Jon Knapp (PDF) to FDA panel examining the science behind the agency's 2009 rule on dental amalgam.
  • December 14, 2010Comments (PDF) to FDA panel examining the science behind the agency's 2009 rule on dental amalgam.
  • August 11, 2010Letter (PDF) to the State Department regarding a possible mercury control treaty.
  • May 26, 2010Testimony (PDF) of William J. Walsh to the House Committee on Oversight and Government Reform's Domestic Policy Subcommittee, on the memorandum of understanding ("MOU") with the Environmental Protection Agency (EPA) and the National Association of Clean Water Agencies (NACWA).
  • April 2, 2010Letter (PDF) sharing scientific information with EPA on potential releases of mercury from amalgam-related sources into the environment.
  • February 24, 2010Letter (PDF) urging members of the House to oppose H.R. 4615, the Consumers Have Options for Molar Protection Act. 
  • September 15, 2009Letter (PDF) urging members of Congress to oppose H. Res. 648 on the grounds that it contains false and misleading statements about the toxicity of dental amalgam. 
  • August 12, 2009Letter (PDF) commending the FDA for allowing credible, peer-reviewed science to guide its final rule categorizing encapsulated dental amalgam as a Class II medical device. 
  • June 23, 2009Letter (PDF) commending the Environmental Protection Agency for its ongoing efforts to help promote the Association's Best Management Practices for Amalgam Waste. 
  • July 28, 2008Comments (PDF) on the FDA's proposal to reclassify encapsulated dental amalgam and dental mercury as Class II devices and add special packaging and labeling controls for amalgam alloy. 
  • July 8, 2008Testimony (PDF) of William J. Walsh to the House Committee on Oversight and Government Reform's Domestic Policy Subcommittee, on voluntary efforts to limit the environmental impact of dental amalgam. 
  • December 21, 2007Comments (PDF) on the EPA's proposals to study an amalgam pretreatment requirement for dental offices. 
  • November 14, 2007Testimony (PDF) to the House Committee on Oversight and Government Reform's Domestic Policy Subcommittee, on the regulation of dental amalgam and its impact on the environment. 
  • October 25, 2007Comments (PDF) by the ADA, et al., on the draft Mercury in Products Phase-Down Strategy. 
  • September 6-7, 2006—Testimony of Drs. Ronald R. Zentz (PDF), Amid Ismail (PDF), and Milton V. Marshall to the Food and Drug Administration (FDA) Dental Products Advisory Panel, on the science supporting the safety of dental amalgam. 

ADA Resources

Additional Resources

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Email: govtpol@ada.org