title: Prevention and control of brick-tea type fluorosis--a 3-year observation in Dangxiong, Tibet.
abstract: To evaluate the effects of preventing and controlling brick-tea type fluorosis, we carried out a 3-year field observation and assayed the total daily fluoride intake, urinary and serum fluoride level, and dental fluorosis prevalence and index in a boarding school in Dangxiong, Tibet, in students aged 8-15. We replaced the traditional brick tea with low-fluoride brick tea (LFBT). Reduction in the traditional brick-tea consumption decreased the total daily fluoride intake among the children, which still remained within the level of chronic intoxication but at a safe level. The study suggests that the LFBT is effective in the prevention and control of endemics of brick tea type fluorosis, although further improvement of the LFBT is required.
authors.affiliation: Tea and Health Laboratory, Xiangya School of Medicine, Central-South University, Tibet, China. caojin@public.cs.hn.cn
authors.forename: Cao
authors.initials: C
authors.lastname: Jin
authors.forename: Zhao
authors.initials: Z
authors.lastname: Yan
authors.forename: Liu
authors.initials: L
authors.lastname: Jian-Wei
authors.forename: Xirao
authors.initials: X
authors.lastname: Ruoden
authors.forename: Danzeng
authors.initials: D
authors.lastname: Sangbu
authors.lastname: Zeguo
authors.forename: Suonan
authors.initials: S
authors.lastname: Zhouma
mesh_terms: D000293:Adolescent; D002648:Child; D004032:Diet; D005260:Female; D005459:Fluorides / Q000009:adverse effects* / Q000032:analysis; D009050:Fluorosis, Dental / Q000209:etiology / Q000517:prevention & control*; D006801:Humans; D008297:Male; D013662:Tea / Q000009:adverse effects* / Q000737:chemistry; D018609:Tibet
chemical_list: D013662:Tea; D005459:Fluorides