Abstract
The fluoride content in the water supply of the Soria province is not normally above 0.2 mg L−1 and its geographical distribution is related to the lithological and geological features of the zone, the highest concentration being associated with the Miocene clay formation of the Almazán Basin.
A statistical analysis confirms a connection between this fluoride content and tooth decay among children in rural areas. However, other factors such as oral hygiene and diet have been found to affect tooth decay.
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Pérez, E.S., Sanz, J. Fluoride Concentration in Drinking Water in The Province of Soria (Central Spain) and Caries in Children. Environmental Geochemistry and Health 21, 133–140 (1999). https://doi.org/10.1023/A:1006658607500
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DOI: https://doi.org/10.1023/A:1006658607500