Fluorine has been all recognised as controlling tooth decay and it is now that it is considered as an essential nutrient. Though the exact nature of its metabolic role has not been established, but there is evidence that growth and possibly reproduction in animals is retarded when the diet is deficient in fluorine.
Functions
Fluoride is incorporated into bone and tooth enamel. It protects against dental carries. It is also involved in the maintenance of bone structure.
Sources
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Fluoride occurs in all soils, water supplies, plants and animals and is a normal constituent of the diet. It occurs in considerable amount in foods like sea fish, cheese and china tea.
Deficiency
It there is deficiency of fluorine during the growing period, it will result in dental carries and tooth decay.