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
Print 
PDF-
-
Mottled enamel in Oklahoma Panhandle, and its possible relations to child development
Summary and Conclusions 1. Results of surveys made in Oklahoma Panhandle on Chronic Fluorine Intoxication was stated, the endemic areas located, the mottled enamel index derived, the fluorine content of the water supply of the different areas given along with the depth of the wells, along with the findings on physical
-
Relation of endemic dental fluorosis to malnutrition
Summary The prevalence and severity of endemic dental fluorosis were studied in 928 undernourished inhabitants who had resided since birth in two fluoride endemic areas in Italy (Compagnano di Roma and Quarto). The data were compared with the index of mottling in endemic areas in the United States with similar fluorine
-
[Relationship between fluoride exposure, orthopedic injuries and bone formation markers in patients with coal-burning fluorosis].
Chronic exposure to fluoride is a public health problem worldwide. We explored the relationship between fluoride exposure, orthopedic injuries and bone formation markers alkaline phosphatase (ALP), bone Gla protein (BGP) in participants with coal-burning fluorosis in Hehua Village (coal-burning fluorosis endemic area) in Zhijin County of Guizhou Province and Zhangguan
-
Enamel hypoplasia in children with renal disease in a fluoridated area
The aim of this study was to compare the frequency of enamel hypoplasia in children with renal disease and healthy children, all of whom live in a fluoridated area. A cross-sectional study was made in 42 children divided into 2 groups. To describe enamel changes, 3 diagnostic criteria were applied:
-
The influence of various fluoride exposures on the prevalence of esthetic problems resulting from dental fluorosis
OBJECTIVES: This study sought to determine the prevalence of esthetic problems due to dental fluorosis, and determine the relationship of different fluoride exposure histories to the occurrence of these problems. METHODS: In 1993-94 2,715 children in grades 2 and 3 and 3,297 adolescents in grades 8 and 9 were examined
Related Studies :
-
-
-
"Mild" Dental Fluorosis: Perceptions & Psychological Impact
The vast majority of research has found that patients, parents, and the general public alike view mild fluorosis (TF score 3) as a significant blemish of the teeth, one that is likely to embarrass the affected child to a degree that cosmetic treatment would be warranted.
-
Diagnostic Criteria for Dental Fluorosis: The TSIF ("Total Surface Index of Fluorosis")
The traditional criteria (the "Dean Index") for diagnosing dental fluorosis was developed in the first half of the 20th century by H. Trendley Dean. While the Dean Index is still widely used in surveys of fluorosis -- including the CDC's national surveys of fluorosis in the United States -- dental
-
Racial Disparities in Dental Fluorosis
In 2005, the Centers for Disease Control published the results of a national survey of dental fluorosis conducted between 1999 and 2002. According to the CDC, black children in the United States have significantly higher rates of dental fluorosis than either white or Hispanic children. This was not the first time that black children were found to suffer higher rates of dental fluorosis. At least five other studies -- dating as far back as the 1960s -- have found black children in the United States are disproportionately impacted by dental fluorosis.
-
Severe Dental Fluorosis: Perception and Psychological Impact
[caption id="attachment_8879" align="aligncenter" width="550"] Severe fluorosis - Photograph by David Kennedy, DDS[/caption] In its severe forms, dental fluorosis causes highly disfiguring brown and black staining of the teeth, which can cause chronic embarrassment and social anxiety for the impacted child. In 1984, a panel from the National Institute of Mental Health (NIMH) warned
-
Dental Fluorosis Is a "Hypo-mineralization" of Enamel
Teeth with fluorosis have an increase in porosity in the subsurface enamel ("hypomineralization"). The increased porosity of enamel found in fluorosis is a result of a fluoride-induced impairment in the clearance of proteins (amelogenins) from the developing teeth. Despite over 50 years of research, the exact mechanism by which fluoride impairs amelogin
Related FAN Content :
-