A salt of sodium used to prevent tooth decay. It is administered by mouth or applied to the teeth as a paste, mouthwash, or gel. Taken in excess by mouth, it may cause digestive upsets and large doses may cause fluorine poisoning. See also fluoridation. Trade names: Duraphat, En-De-Kay, Fluor-a-day, FluoriGard.
Subjects: Medicine and Health — Chemistry.