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Oral Health Topics


Key Points

  • Dental amalgam is a safe, affordable and durable restorative material.
  • Although amalgam remains an effective and inexpensive restorative option, environmental concerns regarding mercury have fueled legislative and regulatory actions in other countries to phase down amalgam use.
  • Considerations of post-placement sensitivity, longevity, esthetics, conditions under which the restoration is to be placed, and cost may all be factors in choosing a restorative material.
  • Introduction
  • Material and Composition
  • Dental Considerations
  • Biocompatibility and Toxicity
  • Regulatory Actions
  • ADA Policies on Amalgam as a Dental Restorative Material
  • References
  • ADA Resources
  • Additional Resources

Reviewed by: Research and Standards Subcommittee, ADA Council for Scientific Affairs

Last Updated: April 21, 2021


Prepared by:

Department of Scientific Information, Evidence Synthesis & Translation Research, ADA Science & Research Institute, LLC.


Content on the Oral Health Topics section of is for informational purposes only.  Content is neither intended to nor does it establish a standard of care or the official policy or position of the ADA; and is not a substitute for professional judgment, advice, diagnosis, or treatment.  ADA is not responsible for information on external websites linked to this website.