Abstract
Objective: To further understand the effect of anti—fluoride water on intellectual development of children and dental fluorosis in drinking water-type of endemic fluorosis area Pucheng county Shaanxi province.
Methods: Two hundred 8 to 12 years old children were randomly selected in endemic fluorosis area with changed water or unchanged water, in 2009 in Pucheng county Shaanxi province. Intelligence quotient (IQ) of children was measured by Raven’s test. Children’s dental fluorosis was examined by Dean’s classification scheme?
Results: The rates of child dental fluorosis in changed water and unchanged water endemic fluorosis areas were 28. 50% (57/200), 87.88% (203/231), respectively, the difference was statistically significant (x2=159.19, P <0.01), while dental fluorosis indices were 0.57, 1.97, was marginal, moderate epidemic. Children with IQ above 90 was accounted for 89.5% (179/200), 91.5% (183/200) in changed water and unchanged water endemic fluorosis area respectively, the difference was not significant (x2=0.46, P >0.05).
Conclusions: Changed water may decrease the incidence of child dental fluorosis, but has no obvious effect on children’s IQ development in endemic fluorosis area.
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Developmental neurotoxicity of fluoride: a quantitative risk analysis toward establishing a safe daily dose of fluoride for children
Background: A recent 2015 study from New Zealand indicated water fluoridation did not have an effect on children’s IQs. A 2012 meta-analysis showed that children with higher fluoride exposure have lower IQs than similar children with lower exposures. Levels of the fluoride ion (F) in blood and urine in children
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Intelligent quotients of 12-14 year old school children in a high and low fluoride village in India.
SUMMARY: The aim of this preliminary study was to compare the intelligence quotient (IQ) scores of 12–14 year old school children living in a high fluoride (F) village with the IQ scores of a similar group of children in a low F village in the Davangere district, Karnataka, India. Sixty-five
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Assessment of Fluoride Content in Water and Its Impact on the Intelligence Quotient of School Children Aged 12–13 Years.
Background: The preliminary study was undertaken with the aim to assess the effect of fluoride content in water on the Intelligence Quotient (IQ) of school children aged 12-13 years residing in areas that differ with respect to fluoride levels. Materials and Methods: The IQ was measured using Raven’s Colored Progressive Matrices
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Investigation of Intelligence Levels of Children of 8 to 12 Years of Age in Coal Burning-Related Endemic Fluorosis Areas.
Objective: To investigate the relationship between age, dental fluorosis and intelligence in children aged 8-12 in coal-burning fluorosis (CBF) area, Guizhou province. Methods: A cross-sectional study was conducted to investigate the prevalence of dental fluorosis and intellectual level in 284 children (n=167 for CBF area, n=120 for control are) aged 8-
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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 was
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