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The fluoride content of human tooth enamel in relation to environmental exposure to fluoride
Author(s) -
Schamschula R. G.,
Sugárt Edit,
Agus Helen M.,
Un Pauline S. H.,
Tóth K.
Publication year - 1982
Publication title -
australian dental journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.701
H-Index - 71
eISSN - 1834-7819
pISSN - 0045-0421
DOI - 10.1111/j.1834-7819.1982.tb04105.x
Subject(s) - enamel paint , fluoride , dentistry , zoology , chemistry , incisor , maxillary central incisor , biology , medicine , inorganic chemistry
A bstract — Double‐layer superimposed biopsies were used for sampling sound labial enamel of upper permanent central incisor teeth of 189 children (mean age 8.4 years, SD = 0.36), comprising five groups, representing life‐long exposure to contrasting concentrations of F in the water (range ≤0.12 ppm to 2.8 ppm) and to supplements of 200 or 350 mg F/kg domestic salt. The mean F concentrations of enamel ranged through the groups from 924 ppm to 2401 ppm in the surface layer (average central depth = 0.49 um) and from 450 ppm to 1428 ppm in the subsurface layer (average central depth = 2.62 um). The differences between the mean F concentrations of the groups were significant in each instance and the values consistently reflected the extent of F exposure. It was concluded that the F content of enamel is a reliable indicator of environmental exposure to F for populations, but not for every individual.