Letter
Since it has been established that the dental disease in man known as “mottled enamel” is due to the drinking of water containing fluorine, the removal of fluorides by filtration has become an important problem.
I have found that a contact filter 15 cm high, made of river sand passing a screen 60 to the inch, to which has been added 2 per cent. by weight of powdered aluminium, will remove the fluoride from a solution containing 30 parts per million of sodium fluoride. The absence of fluoride in the filtrate was determined by the zirconium-alizarin colorimetic method.
S.P. Kramer
Ft. Thomas, KY.
*Read letter online at https://science.sciencemag.org/content/80/2086/593.1
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Diagnosing dental caries in populations with different levels of dental fluorosis
The aim of this study was to assess the reliability of the Nyvad visual-tactile caries-diagnostic criteria when used among children who have been lifelong residents in areas with 'optimal' or low concentrations of fluoride in the drinking water. In each of two areas with drinking water fluoride concentrations of 0.3 and 1.1 ppm (0.3
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Associations between Intakes of fluoride from beverages during infancy and dental fluorosis of primary teeth
OBJECTIVE: We describe associations between primary tooth fluorosis status and intakes of beverages and fluoride from these beverages during infancy. METHODS: Subjects (n = 677) are members of the Iowa Fluoride Study, a cohort of young children followed from birth. Food and nutrient intakes were obtained from 3-day diet records.
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The purpose of this study was to assess the caries prevalence of children living in areas with either 0.25 or 2.5 ppm fluoride in the drinking water, and to relate caries experience to the severity of dental fluorosis. The children, aged 6-16 years (mean 11.3 years), were lifelong residents of their rural
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Evidence-based clinical recommendations regarding fluoride intake from reconstituted infant formula and enamel fluorosis: a report of the American Dental Association Council on Scientific Affairs.
BACKGROUND: This article presents evidence-based clinical recommendations regarding the intake of fluoride from reconstituted infant formula and its potential association with enamel fluorosis. The recommendations were developed by an expert panel convened by the American Dental Association (ADA) Council on Scientific Affairs (CSA). The panel addressed the following question: Is
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Background: A 2-group randomized field trial was conducted to evaluate the impact of a fluorosis educational preventive program in mother´s knowledge and practices, and on the urine fluoride concentration of their preschool children. Material and Methods: A group of 139 mother-child pairs participated in the study. Randomly, children were assigned to an intervention
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