Open AccessHigh prevalence of dental fluorosis among schoolchildren in three villages in Vavuniya District: an observational study
Author(s) -
P. Sunethra Rajapakse,
W M Jayawardhane,
A Lokubandara,
R Gamage,
Ananda P. Dasanayake,
Colvin Goonaratna
Publication year - 2017
Publication title -
ceylon medical journal/the ceylon medical journal
Language(s) - English
Resource type - Journals
eISSN - 2386-1274
pISSN - 0009-0875
DOI - 10.4038/cmj.v62i4.8570
Subject(s) - medicine , ceylon , medical journal , observational study , family medicine , sri lanka , dental fluorosis , public health , alternative medicine , environmental health , medline , nursing , ancient history , south asia , pathology , law , inorganic chemistry , chemistry , fluoride , political science , history
Studies of groundwater sources in Sri Lanka show that in the entire Northern, North Central, Uva and Eastern Provinces, and also in a large area of the North Western Province, groundwater fluoride content is within the range 1.0 mg/l and 3.0 mg/l. The WHO recommended safe upper limit of fluoride for drinking water is 1.5 mg/l.