Amalgam fillings, or also known as silver fillings, are a combination of metals used to fill a tooth after decay is removed by your dentist. Amalgam fillings are mostly used in back teeth that are not visible when you smile, or in teeth where composite (white) fillings are rejected. Often times, amalgam is used for pediatric restorations so that there is better retention in baby teeth.
Many people have concerns about amalgam fillings that contain mercury. However, the U.S Food and Drug Administration (FDA) found that amalgam fillings are safe for adults and children ages 6 and above. For more information regarding amalgam fillings, see the article: www.colgate.com/en/us/oc/oral-health/procedures/fillings/article/dental-amalgam-a-health-risk