Abstract
An epidemiological survey on the prevalence of dental fluorosis was performed in 4 districts in Uganda. 1399 persons in 13 areas with fluoride concentrations in the drinking water, varying from 0.11 to 3.00 ppm, were examined. The community index of dental fluorosis ( F ci) varied from 0.04 in low-fluoride areas to 1.74 in high-fluoride areas. The severity of dental fluorosis was found to be higher among Africans than among Asians, and higher in males than in females. The distribution of severity indices for permanent teeth ( F ti) showed the following ranking of the teeth in decreasing order of severity: premolars, second molars, upper incisors, canines, first molars and lower incisors. On the basis of the severity of dental fluorosis and the average mean maximum temperature the optimum fluoride concentration in drinking water in Uganda is considered to be 0.6 ppm F.
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