The Relationship between Dental Caries and Tooth Enamel Fluoride

Abstract
Four thin layers of enamel totaling approximately 8 .mu.m were removed from each of 2 bicuspids in 215 subjects, age 14-24 yr and analyzed for fluoride. The concentration of fluoride in the outer layers decreased significantly with subjects'' age. A small but statistically significant correlation between enamel fluoride and DMFS [decayed-missing-filled surface] of individual subjects was found. Correlations were somewhat stronger in the outer enamel layers and in subjects from nonfluoridated areas.