one’s resistance to dental caries. It appears to strengthen bones and teeth by
making the bone mineral less soluble and thus less inclined to being
Sources.The principal source of fluoride is
fluoridated water (water towhich fluoride has been added). In addition, fish
and tea contain fluoride. Com-mercially prepared foods in which fluoridated
water has been used during the preparation process also contain fluoride.
Requirements.The requirement for fluoride is given as AI
levels(Table 8-8). Fluoride is measured in milligrams.
Deficiency or Toxicity.The deficiency of fluoride can result
inincreased tooth decay. Excessive amounts of fluoride in drinking water have
been known to cause permanent discoloration or mottling of children’s teeth.