An amalgam is a mixture or blend of different elements, often referring specifically to a dental material that combines Mercury with other metals, such as silver, tin, or copper, to create a durable filling for cavities. Amalgams are valued for their strength and longevity in dental applications. In a broader sense, the term can also describe any mixture of metals. The use of dental amalgams has decreased in recent years due to concerns over mercury exposure and the rise of alternative materials.