Abstract
The Chinese Binet IQ Test was used to investigate the IQs of 7–13 year- old children suffering from dental fluorosis, living and attending school in an area with coal burning-related fluoride poisoning. The average IQ of these children was found to be markedly lower than in the control area, and the number of children classified as having low intelligence was significantly higher. For both groups, IQ and serum fluoride show a negative correlation (r = –0.205).
Translated by Julian Brooke for the Fluoride Action Network and published with the concurrence of the Chinese Journal of Endemiology 1991;10(2):98-100 in the journal Fluoride.
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The effects of high fluoride on the level of intelligence of primary and secondary students.
The harm of long-term intake of excessive fluoride on the human skeletal system has been proved. There are also reports about the effects of high fluoride on the human nervous system and mental development [1, 2]. Some studies have proved that if the mother has taken in an excessively high amount of fluoride, she can
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The Auditory Working Memory of 13-15-Year-Old Adolescents Using Water with Varying Fluoride Concentrations from Selected Public Primary Schools in North Kajiado Sub County.
Water contributes significantly to the physiological functions in the in the human body. However, low fluoride doses have been reported to affect the central nervous system (CNS) without first causing the physical malformations of dental and skeletal fluorosis. Aims and objectives were to determine fluoride concentrations in water used by
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A comparative analysis of the results of multiple tests in patients with chronic industrial fluorosis
For this paper, X-rays, intelligence testing, fingernail fluorine content testing, electroencephalographs, and tests of nervous system symptoms and signs were performed on patients with chronic industrial fluorosis, as well as on workers who had worked in the same environment for shorter periods of time and were not diagnosed with industrial
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Inferring the fluoride hydrogeochemistry and effect of consuming fluoride-contaminated drinking water on human health in some endemic areas of Birbhum district, West Bengal
This research work is carried out to evaluate fluoride (F) hydrogeochemistry and its effect on the population of two endemic villages of Birbhum district, West Bengal. Fluoride concentration in drinking water varies from 0.33 to 18.08 mg/L. Hydrogeochemical evolution suggests that ion-exchange mechanism is the major controlling factor for releasing F
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Association Between Maternal Fluoride Exposure During Pregnancy and IQ Scores in Offspring in Canada.
Key Points Question Is maternal fluoride exposure during pregnancy associated with childhood IQ in a Canadian cohort receiving optimally fluoridated water? Findings In this prospective birth cohort study, fluoride exposure during pregnancy was associated with lower IQ scores in children aged 3 to 4 years. Meaning Fluoride exposure during pregnancy may be associated
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NRC (2006): Fluoride's Neurotoxicity and Neurobehavioral Effects
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