Mercury in dental amalgams is not toxic. When mercury is combined with other substances in dental amalgams, its chemical properties change and are essentially harmless. Under chewing and grinding pressures, the amount of mercury released from the mouth is minimal and does not cause an alarm. In fact, it is less than exposed to food, air and water.
Scientific research conducted over the past 100 years has continued to prove that amalgam is not harmful. The claims of disease caused by amalgam are anecdotal, just as miraculous healing is achieved by the removal of amalgam. These claims have not been scientifically proven.