Fluoride in water: Caries and Fluorosis

• Pre-1945 data; 12-14 year-olds

• 21 US cities; hundreds of children

• Caries Experience

• Number of decayed, missing and filled teeth per child (DMFT)

• Enamel Fluorosis

• Dean’s index: normal, questionable, very mild, mild, moderate, severe

• Community Fluorosis Index

• 0.6 - Public Health Significance

• Minimum Caries/ Minimum Fluorosis

• 1 ppm Fluoride in water