Amalgam
Pronunciation: AM-al-gam
A dental restorative material composed of an alloy of mercury with silver, tin, copper, and zinc, historically used to fill cavities.
Full Definition
Dental amalgam has been used as a restorative material for over 150 years and is notable for its durability and cost-effectiveness. It consists of approximately 50% elemental mercury mixed with a silver-tin alloy. In clinical records and consent forms, editors must ensure 'amalgam' is not incorrectly used as a synonym for all dental fillings — composite (tooth-colored resin) and glass ionomer cement are distinct materials. Given ongoing regulatory and environmental discussions around mercury content, editors working on policy or compliance documents must ensure the material is accurately named and that any restrictions (e.g., EU regulations limiting amalgam use in certain populations) are accurately reflected.
Usage
Usage note: Do not use 'amalgam' generically to mean any dental filling material. When editing regulatory documents, verify jurisdiction-specific restrictions on amalgam use are accurately stated.
In Context
- "The patient requested replacement of their amalgam restorations with composite for aesthetic reasons." — Patient consent and treatment planning form
- "Under current EU regulations, dental amalgam must not be used in the treatment of deciduous teeth, pregnant women, or children under 15." — Clinical compliance guidance document