There has been concern over the years regarding the safety of amalgam (silver) fillings due to their mercury content. Amalgam is a mix of silver, copper, tin, zinc, and elemental mercury, used in dentistry for over 100 years. The worry stems from the potential health risks of mercury vapor and particles. However, according to the American Dental Association (ADA), silver fillings are safe. Studies have shown no connection between amalgam fillings and medical disorders. Most dentists still use silver fillings without health concerns.