Why is amalgam dangerous ?

Most conventional silver amalgams consist of a 1:1 mixture of metallic mercury and alloy powder consisting of silver (about 70% by weight), tin (about 25%), and smaller amounts of copper (1-6%) and zinc (0-2%). The copper amalgam contained 60-70% mercury and 30-40% copper, mostly unsed in paediatric dentistry. (IPCS (International Programme on Chemical Safety) Environmental Health Criteria 118 Inorganic Mercury, World Health Organization, 1991, Page 151)

Symptoms of amalgam intoxication

How is mercury absorbed ?

The general population is primarily exposed to mercury through the diet and dental amalgam. Several studies have correlated the number of dental amalgam fillings or amalgam surfaces with the mercury content in tissues from humat autopsy, as well as in sample of blood, urine, and plasma.( IPCS (International Programme on Chemical Safety) Environmental Health Criteria 118 Inorganic Mercury, World Health Organization, 1991, Page 16)

During all work performed on amalgam with traditional means, (drilling, polishing) an important amount of highly toxic mercury vapour is inhalated by the patient and the dentist.