Silver amalgam fillings contain about 50 percent mercury, with the remaining material made from a powder of silver, tin, zinc, and copper. Some experts are concerned that the release of microscopic amounts of mercury vapor—a consequence of chewing food, grinding teeth, and exposing the fillings to hot substances—might cause neurological problems or kidney damage, particularly in sensitive populations, such as children and pregnant women. Others, including the American Dental Association, say the safety data are reassuring.
Matt: CORRECT
Record: 649-546
No comments:
Post a Comment