Abstract
Objective: Investigate the effect of high fluoride exposure on the level of intelligence in children.
Method: In May 2006, 42 children from a high endemic fluorosis group and 37 children from the control area (who have been consuming low-fluoride water after water improvement schemes) were chosen for the test. They are all from a primary school in Pucheng county, Shaanxi province. Their level of intelligence was tested, and a test for dental fluorosis was conducted using Dean’s method, and the level of fluoride in urine was determined with a fluoride ion selective method.
Results: The average intelligence level of the children in the high fluoride group (96.11 + 12.00) was lower than that of the control group (98.41 + 14.75). We have not found any children with an intelligence level exceeding a level deemed as excellent; as for the intelligence distribution in these groups, there is little statistical significance. There was a negative correlation between the urine fluoride concentration and the level of intelligence in children (P>0.05).
Conclusion: Exposure to high levels of fluoride is likely to cause a certain level of harm.
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Relationship between dental fluorosis and intelligence quotient of school going children in and around Lucknow district: a cross-sectional study
Background: Fluoridation of drinking water, despite being regarded as one of the top ten public health achievements of the twentieth century, has remained a much debated concept. Various studies on animals and aborted human fetuses have confirmed that excessive fluoride intake during infancy and early childhood, causes a number of
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European Commission: Opinions on the 2011 SCHER report on fluoridation for the Layman
European Commission: Opinions on the 2011 SCHER report on fluoridation for the Layman About this publication on Fluoridation Online at https://ec.europa.eu/health/scientific_committees/opinions_layman/fluoridation/en/about.htm 1. Source for this Publication The texts in level 3 are directly sourced from “Critical review of any new evidence on the hazard profile, health effects, and human exposure to fluoride and the fluoridating
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Influence of fluoride exposure on reaction time and visuospatial organization in children
Note: This is a conference abstract from the 2000 Annual Conference of the ISEE (International Society for Environmental Epidemiology). No full study has been published. Fluoride exposure is an important public health problem in several Mexican states. In the city of San Luis Potosi, Mexico, above 90% of the children have
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Investigation and analysis of the development of intelligence levels and growth of children in areas suffering fluorine and arsenic toxicity from pollution from burning coal
Aim: To study the impacts on the development of intelligence and growth of children suffering fluorine and arsenic toxicity from pollution from burning coal. Method: Areas suffering from significant morbidity and minor morbidity were selected for investigation from areas of southern Shaanxi Province suffering fluorine and arsenic toxicity from pollution from
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Thyroid function, intelligence, and low-moderate fluoride exposure among Chinese school-age children.
Highlights Low-moderate fluoride was related to alterations in childhood thyroid function. Fluoride exposure was associated with a decrease in children’s intelligence. TT3, FT3 were positively related to the odds of developing high normal intelligence. TSH may modify the association of fluoride with children’s intelligence. Background: Thyroid hormones (THs) are critical for
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Fluoride: Developmental Neurotoxicity.
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