Abstract
This study was conducted on 160 children, in the Bagalkot district of Karnataka state between August and October 2010, with the aim of finding out if there is a relation between dental fluorosis status and Intelligence Quotient (IQ). Children were categorized as, those suffering from dental fluorosis and those not suffering from dental fluorosis and for all children in both categories, Intelligence testing was done using the Raven’s Coloured Progressive Matrices. The following observations were made from the data gathered: The mean IQ score of children without dental fluorosis was significantly higher than those children who had dental fluorosis. The mean IQ scores did not vary with the severity of dental fluorosis as classified by Dean’s fluorosis index. Also it was noticed that the percentage of children with dental fluorosis was more in Extremely Low and Low IQ categories whereas the percentage of children without dental fluorosis was more in Average and High Average IQ categories. Previous studies had indicated toward decreased Intelligence in children exposed to high levels of fluoride and our study also confirmed such an effect.
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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
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Using drawing tests to measure intelligence in children from areas impacted by combined Al-F endemic toxicosis (Shuicheng, Guizhou).
Measurements of intelligence via drawing tests have been conducted to examine the intelligence development of children from regions affected by combined AIF endemic toxicosis. A selected number of 196 children between 6.5 and 12 years of age participated in the testing. Across all age groups, the average IQ level of children from
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Arsenic and fluoride exposure in drinking water: children’s IQ and growth in Shanyin County, Shanxi Province, China.
Background: Recently, in a cross-sectional study of 201 children in Araihazar, Bangladesh, exposure to arsenic (As) in drinking water has been shown to lower the scores on tests that measure children’s intellectual function before and after adjustment for sociodemographic features. Objectives: We investigated the effects of As and fluoride exposure on
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Prenatal exposure to fluoride and neuropsychological development in early childhood: 1-to 4 years old children.
Highlights Maternal fluoride levels were associated with better cognitive scores in childhood. The neuropsychological association is gender dependent; only seen in boys. Positive associations do not disappear after adjustment by different covariates. A potential positive neuropsychological association at low fluoride levels cannot be excluded. Background Cross-sectional and prospective studies have provided
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[Effects of fluoride and arsenic in drinking water on children's intelligence].
Objective: To study the effect of fluoride and arsenic exposure in drinking water on children’s intelligence ,and to provide scientific basis for children’s health protection. Methods: Two hundred and sixty-eight pupils in Hangjinhou Qi,Inner Mongolia were selected as subjects. Fluoride and arsenic in drinking water were determined. The Chinese combined Raven’s
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