These are samples of amalgam restorations {fillings}.  You may hear the name silver fillings, alloy fillings or amalgam.  This all refer to the same material.

Amalgam is a filling material made by combining mercury and silver.  I use a high copper amalgam which is stronger and more durable. Even though amalgam contains mercury the extensive studies have shown it to be a safe material to restore teeth.

The main advantages of amalgam are: It is the least expensive material to use and is is the ideal material to use when a patient have poor oral hygiene or a high decay rate.