Abstract
Summary
Thirty-three samples of urinary and 9 samples of biliary tract calculi from individuals with known histories of exposure to water-borne fluoride were analyzed for fat, ash, calcium, phosphate and fluoride. (1) Concentration of fluoride in urinary tract calculi was significantly higher than that in the bones. (2) Mean concentration of 0.25% fluoride in urinary tract calculi of individuals from low fluoride area was not significantly different from that (0.37%) of calculi of individuals whose drinking water contained 2.6 ppm fluoride. (3) No relation was apparent between the calcium and fluoride concentrations of urinary tract calculi. (4) Fluoride was present in biliary tract calculi in very low concentration (0.000-0.006%).
Get full access to this article
View all access options for this article.