Abstract
Goal: To investigate the effects of endemic fluoride poisoning caused by coal burning on the physical development and intellectual ability of children.
Method: Using random sampling from the relevant population, 176 fluorosis sufferers aged 7–12 (the subjects) were drawn from a heavily fluoride poisoned area of Zhijin County, with 50 children without dental fluorosis (the control) selected from a less severely poisoned area. The children were subjected to tests to determine levels of urinary fluoride, physical development, and intellectual ability, followed by analysis of the various measurements.
Results: Compared to the control group, the fluorosis group showed retarded physical development, and the levels of urinary fluoride and intellectual ability were both lower than the control (P < 0.05 for both).
Conclusion: high fluoride burden has a definite effect on the intellectual and physical development of children.
Translated by Julian Brooke for Fluoride Action Network and published with the permission of the Journal of Applied Clinical Pediatrics 2005;20(9):897-9 in the journal Fluoride.
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[Investigation of children’s intelligence quotient and dental fluorosis in drinking water-type of endemic fluorosis area in Pucheng county Shaanxi province before and after drinking water change].
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
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Threshold effects of moderately excessive fluoride exposure on children's health: A potential association between dental fluorosis and loss of excellent intelligence.
Highlights Childhood fluoride exposure was inversely associated with dental health and IQ. Threshold and saturation effects for aforementioned associations existed. Moderate fluoride exposure was mainly related to excellent intelligence loss. Dental fluorosis may be useful to reflect excellent intelligence loss. BACKGROUND: Excessive fluoride exposure is associated with adverse health outcomes, but
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Research on the effects of fluoride on child intellectual development under different environments
Goal: To study the effects of the fluoride and iodine content of drinking water on child intellectual development and the interaction between the two factors and also the relationship of educational factors to such development. Methods: The subjects of the investigation were 8- to 14-year-old children randomly selected from endemic areas as well
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Effect of coal-burning endemic fluorosis on children's physical development and intellectual level
Objective To investigate the effect of coal-burning endemic fluorosis on children's physical development and intellectual level so as to provide data support for the protection of children's healthy growth in fluorosis areas. Methods Ninety children with coal-burning endemic fluorosis were selected for the study, which were divided into heavy fluorosis area group, middle
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Effect of fluoridated water on intelligence in 10-12-year-old school children.
Aim: The aim of the present study was to evaluate the relationship of drinking water fluoride levels with children's intelligence quotient (IQ). Materials and methods: Water was collected from initially identified endemic fluoride regions according to the geological research of Government of India. Fluoride concentration of the
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