Silver-colored metal dental fillings contain mercury that may cause health problems in pregnant women, children and fetuses, the Food and Drug Administration said, after settling a related lawsuit. As part of the settlement with several consumer advocacy groups, the FDA agreed to alert consumers about the potential risks ... and to issue a more specific rule next year for fillings that contain mercury. Dental amalgams contain mercury, which may have neurotoxic effects on the nervous systems of developing children and fetuses," the FDA said. "Pregnant women and persons who may have a health condition that makes them more sensitive to mercury exposure, including individuals with existing high levels of mercury bioburden, should not avoid seeking dental care, but should discuss options with their health practitioner," the agency said. The lawsuit settlement was reached ... with several advocacy groups, including Moms Against Mercury, which had sought to have mercury fillings removed from the U.S. market. Some consumer groups contend the fillings can trigger a range of health problems such as multiple sclerosis and Alzheimer's disease. Mercury has been linked to brain and kidney damage at certain levels. Amalgams contain half mercury and half a combination of other metals. Charles Brown, a lawyer for one of the groups called Consumers for Dental Choice, said the agency's move represented an about-face. "Gone, gone, gone are all of FDA's claims that no science exists that amalgam is unsafe," he said.