Abstract

SUMMARY:

Note from Fluoride Action Network:
This is the same study that was published by the journal Journal of Dentistry and Oral Hygiene in 2011.

A study was conducted to evaluate the effect of high and low fluoride (F) in
the drinking water on the Intelligence Quotient (IQ) of young schoolchildren in two
otherwise similar high-altitude communities in a mountainous region of Kerman Province,
Iran. The study sample consisted of 120 boys and girls age 7–9: 60 in the city of
Koohbanan (pop. 12,253; elev. 2200 m) with 2.38 ppm F in the water and 60 in the city of
Baft (pop. 14,628; elev. 2300 m) with 0.41 ppm F in the water. Using a Persian version of
Raven’s Progressive Matrices Intelligence Test, the mean IQ scores of the children in low
F Baft was 97.80±15.95, and in high F Koohbanan it was significantly lower at 91.37±15.63
(p = 0.028).

• Related Studies :

  • Fluoride exposure and intelligence in school-age children: evidence from different windows of exposure susceptibility.

    Study Retracted on November 8, 2022. Retraction Note: BMC Public Health 20, 1657 (2020) https://doi.org/10.1186/s12889-020-09765-4 The Editor has retracted this article. After publication, concerns were raised regarding the data analysis and conclusions in the paper. The authors have provided raw data, and post-publication review found inconsistencies in methodology and major misinterpretation of the

  • Analysis on TSH and intelligence level of children with dental fluorosis in a high fluoride area.

    Fluoride is one of the indispensable elements for the living being. Excess amounts of fluoride, however, may damage the teeth and bones. Fluoride may also injure the body’s soft tissues, resulting in nonskeletal fluorosis. To further investigate the influence of endemic fluorosis on childhood thyroid function and intelligence, we have selected school-aged children inflicted with dental fluorosis

  • A study of the IQ levels of four- to seven-year-old children in high fluoride areas.

    Using the Wechsler Preschool and Primary Scale of Intelligence, we conducted a study to determine the intellectual ability of 147 four- to seven-year-old preschool children in a high fluoride zone [of a rural area of Shehezi in Xinjiang Province, China] and 83 similarly-aged children from a low fluoride zone in

  • Research on the intellectual ability of 6-14 year old students in an area with endemic fluoride poisoning

    Using Chinese comparative testing, an investigation of the intellectual abilities of students at Hongwu Elementary School (Ankang city, Shaanxi province) was carried out; with the subjects coming from an area that has drinking water-related endemic fluoride poisoning, and the control selected from among students who live in non-endemic areas but

  • Effect of fluoride in drinking water on dental caries and IQ in children.

    The aim of this work was to evaluate the impact of fluoride exposure on the prevalence of dental caries and the intellectual ability of children. Method: In this cross sectional study, 161 children from 9 to 10 years of age were evaluated. The concentration of fluoride in drinking water and urine

• Related FAN Content :

  • Fluoride Affects Learning & Memory in Animals

    An association between elevated fluoride exposure and reduced intelligence has now been observed in 65 IQ studies. Although a link between fluoride and intelligence might initially seem surprising or random, it is actually consistent with a large body of animal research. This animal research includes the following 45 studies (out

  • Fluoride & IQ: 76 Studies

    Note: See the Updated list of fluoride IQ studies at https://fluoridealert.org/researchers/fluoride-iq-studies/the-fluoride-iq-studies/ • As of July 18, 2022, a total of 85 human studies have investigated the relationship between fluoride and human intelligence. • Of these investigations, 76 studies have reported that elevated fluoride exposure is associated with reduced IQ in humans. • The studies

  • Fluoride: Developmental Neurotoxicity.

    Developmental Neurotoxicity There has been a tremendous amount of research done on the association of exposure to fluoride with developmental neurotoxicity. There are over 60 studies reporting reduced IQ in children and several on the impaired learning/memory in animals. And there are studies which link fluoride to Attention Deficit Hyperactivity Disorder. Teaching

  • Fluoride's Direct Effects on Brain: Animal Studies

    The possibility that fluoride ingestion may impair intelligence and other indices of neurological function is supported by a vast body of animal research, including over 40 studies that have investigated fluoride's effects on brain quality in animals. As discussed by the National Research Council, the studies have consistently demonstrated that fluoride, at widely varying concentrations, is toxic to the brain.

  • NRC (2006): Fluoride's Neurotoxicity and Neurobehavioral Effects

    The NRC's analysis on fluoride and the brain.