I recently discovered that standard dental fillings are made of 50 percent mercury and 50 percent silver. A friend suggested replacing them with BioGold. Thanks kindly for your attention. Mercury amalgam fillings were introduced more than 150 years ago, and ever since there has been controversy about their benefits and risks.
Dentists like to use amalgam because it's inexpensive, versatile, durable and easy to work with.
The material is made by mixing liquid mercury with a powder of silver, tin, copper and sometimes indium, palladium or zinc. In recent years, dentists have begun using other materials to fix small cavities, but mercury amalgam is still the material of choice for larger cavities and cavities in the back teeth, and as a foundation for other types of restorations such as ceramic or cast metal. Fortunately, however, the risk to most people is not that great. Once fillings are in place, there is very slow release of mercury vapor into the mouth during activities like chewing and tooth-brushing. People with amalgam in their mouths do accumulate slightly higher amounts of mercury over time in their blood, urine, kidney, brain and other tissues, according to a 1993 report by the U.S. Public Health Service.