Recently the FDA released information about mercury amalgams for tooth fillings. The FDA stated that mercury amalgams were safe for adults and children aged 6 and older. The FDA put the amalgams in a Class II, meaning that they have moderate risk. However, it is important to understand that even though this came up from a Class I, which is low risk, the new classification allows the FDA to have some special controls. Many dentists still use the mercury amalgams and insurance companies love them because they are cheap, especially compared to alternatives.