Abstract
Objective: To understand the relationship of dental fluorosis and IQ among children in a high fluoride area and further study the harm of high fluoride to the human body.
Method: High fluoride areas (from drinking water) in Qi County were selected as the site of investigation. The subjects of the study were 7-to-10-year-old children. Dental fluorosis was diagnosed using the Dean Index, and IQ was determined with the Chinese combined Raven’s test.
Results: The average IQ among the children in the high fluoride area was 98.06 and the rate of mental retardation was 5.47%. Intelligence distribution in the children with and without dental fluorosis did not show any difference, and no sex-specific differences in intelligence were found.
Conclusions: The long-term consumption of high fluoride water may adversely affect children’s intelligence.
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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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Refinement Impairments of Verbal-Performance Intelligent Quotient in Children Exposed to Fluoride Produced by Coal Burning.
To explore the relationship between total intelligence quotient (IQ), verbal intelligence quotient (VIQ), performance intelligence quotient (PIQ), and fluoride exposure in children aged 8–12 years in coal-burning fluorosis area of Dafang County, Guizhou Province, China. The Wechsler Intelligence Scale for Children Revised in China (WISC-CR) was used to test the total
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Effects of high iodine and high fluorine on children’s intelligence and thyroid function.
Objective: Try to find out the effects of high iodine and high fluorine on children’s intelligence and thyroid function. Methods: We selected in Qingyun County the Lidian Primary School, where the iodine and fluorine in the water are relatively high in concentration as the investigative point and Dading Primary School where the iodine and
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Effects of endemic fluoride poisoning on the intellectual development of children in Baotou.
Our goal was to investigate the effects of endemic fluoride poisoning on the intellectual development of children living in Baotou, Inner Mongolia. Our method was to select random child subjects from endemic fluoride areas in Baotou and use the illustrated version of the Chinese Standardized Raven Test for use with
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Fluoride exposure, dopamine relative gene polymorphism and intelligence: A cross-sectional study in China.
Highlights Urine fluoride was inversely associated with IQ. IQ of children with high-activity MAOA genotype was lower than IQ of those with low-activity or female heterozygote genotype. DAT1 and MAOA gene polymorphism modify the effects of UF on IQ. UF, ANKK1, COMT and MAOA have a high-dimensional interaction on
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NRC (2006): Fluoride's Neurotoxicity and Neurobehavioral Effects
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