Biomaterial Database

[A preliminary report on endemic fluorosis caused by treating food with hot spring water]. 1990

R H Xu

Health and Anti-epidemic Station of Guangdong Province.

Fengliang town is situated in the hot spring area in the eastern part of Guangdong province. The concentrations of fluorine in drinking water were less than 0.4 ppm and the prevalence rate of dental fluorosis was 55.43%. A preliminary epidemiological survey showed that the fluorine concentrations of vegetables treated with hot-spring water (F- 20.33 ppm) and dried and those with control water (0.12 ppm) were 55.35 and 16.29 mg/kg respectively. The former was significantly higher than the latter. There was a positive correlation between the dental fluorosis prevalence rate and the distance from residential site to the hot spring in five residential sites and a dose response relationship between prevalence rate and frequency of using hot spring water was observed. It is suggested that the major epidemiological factor of fluorosis in this town is the food contaminated by hot spring water and this area could be designated as an endemic fluorosis area due to food contamination by hot-spring water.

UI	MeSH Term	Description	Entries
D008900	Mineral Waters	Water naturally or artificially infused with mineral salts or gases.	Mineral Water,Water, Mineral,Waters, Mineral
D009050	Fluorosis, Dental	A chronic endemic form of ENAMEL HYPOMINERALIZATION caused by drinking water with a high fluorine content during the time of tooth formation, and characterized by defective calcification that gives a white chalky appearance to the enamel, which gradually undergoes brown discoloration. (Jablonski's Dictionary of Dentistry, 1992, p286)	Dental Fluorosis,Mottled Enamel,Mottled Teeth,Dental Fluoroses,Fluoroses, Dental,Enamel, Mottled,Mottled Enamels,Teeth, Mottled
D002648	Child	A person 6 to 12 years of age. An individual 2 to 5 years old is CHILD, PRESCHOOL.	Children
D002681	China	A country spanning from central Asia to the Pacific Ocean.	Inner Mongolia,Manchuria,People's Republic of China,Sinkiang,Mainland China
D005459	Fluorides	Inorganic salts of hydrofluoric acid, HF, in which the fluorine atom is in the -1 oxidation state. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed) Sodium and stannous salts are commonly used in dentifrices.	Fluoride
D005506	Food Contamination	The presence in food of harmful, unpalatable, or otherwise objectionable foreign substances, e.g. chemicals, microorganisms or diluents, before, during, or after processing or storage.	Food Adulteration,Adulteration, Food,Adulterations, Food,Contamination, Food,Contaminations, Food,Food Adulterations,Food Contaminations
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000293	Adolescent	A person 13 to 18 years of age.	Adolescence,Youth,Adolescents,Adolescents, Female,Adolescents, Male,Teenagers,Teens,Adolescent, Female,Adolescent, Male,Female Adolescent,Female Adolescents,Male Adolescent,Male Adolescents,Teen,Teenager,Youths
D014675	Vegetables	A food group comprised of EDIBLE PLANTS or their parts.	Vegetable
D014881	Water Supply	Means or process of supplying water (as for a community) usually including reservoirs, tunnels, and pipelines and often the watershed from which the water is ultimately drawn. (Webster, 3d ed)	Supplies, Water,Supply, Water,Water Supplies