It is already a known fact that Silver amalgams which are used to restore the lost part of a tooth, are not safe for people, as they contain the toxic metal Mercury, due to which the name “Amalgam”.
But ever since people have learned that Amalgams have more than 50% mercury in it, the race against this material has increased. People have made groups and associations to stop companies from manufacturing it and trying to make dentists decrease the usage of Amalgams.
Since 2002 the U.S. FDA (Federal Drug Administration) has classified amalgam dental fillings as a class II device, basically meaning that there are no restrictions placed on amalgam filling materials.
In an agreement to settle a lawsuit filed by the group Moms Against Mercury the FDA agreed in June 2008 to change their website to acknowledge the possible dangers associated with amalgam fillings. The FDA now admits that mercury vapor is released during chewing on an amalgam filling and also when the silver fillings are placed and removed from the teeth.
According to researchers, the mercury in Amalgam is harmful to the systems associated with the brain and it causes neurological symptoms in the Children or fetus developing in a pregnant woman. Also it affects the elderly people.
So it is advised to the dentists to encourage and increase the usage of Composites as restorative material rather than Silver amalgams for restorative purposes.