e/Dental amalgam controversy

Information
has gloss	eng: The dental amalgam controversy refers to the conflicting views over the use of amalgam as a filling material mainly because it contains the element mercury. The concern centers on the health effects of toxicity or allergy which may be associated with constant mercury exposure, particularly as a potential cause of chronic illnesses, autoimmune disorders, neurodegenerative diseases, birth defects, oral lesions, and mental disorders. Scientists agree that dental amalgam fillings leach mercury into the mouth, but studies vary widely in the amount. Estimations run from 1-3 µg/day (FDA) up to 27 µg/day (Patterson). The effects of this exposure is also disputed,
lexicalization	eng: Dental amalgam controversy
instance of	c/Criticisms