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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Effect of fluoride exposure on the intelligence of school children in Madhya Pradesh, India.
Objective: To assess the relationship between exposure to different drinking water fluoride levels and children's intelligence in Madhya Pradesh state, India. Materials and Methods: This cross-sectional study was conducted among 12-year-old school children of Madhya Pradesh state, India. The children were selected from low (< 1.5 parts per million) and high
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The relationships between low levels of urine fluoride on children’s intelligence, dental fluorosis in endemic fluorosis areas in Hulunbuir, Inner Mongolia, China.
There has been public concern about children's intellectual performance at high levels of fluoride exposure, but few studies provide data directly to the question of whether low fluoride exposure levels less than 3.0 mg/L in drinking water adversely associated with children's intelligence. In this survey, we investigated the effects of
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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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Association of lifetime exposure to fluoride and cognitive functions in Chinese children: A pilot study
Highlights Elevated fluoride concentrations in drinking water may be neurotoxic. We carried out a pilot study of 51 first-grade children with stable lifetime fluoride exposures. Moderate and severe fluorosis was associated with deficits in digit span total and backward scores. The dose-dependence underlying the association needs to be characterized in
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Study on the correlation between daily total fluoride intake and children’s intelligence quotient.
Objective: To explore the exact relationship between daily total intake of fluoride and children's intelligence quotient (IQ). Methods: Wamiao village (severely endemic fluorosis area, drinking water fluoirde was 0.57-4.50 mgL) and Hinhuai village (non-endemic fluorosis area, drinking water fluoride was 0.18-0.76 mgL-1) in Shong County, Jiangsu Province, were selected for this
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