A survey was carried out in a village of an endemic fluorosis area. Th
em was a high rate of dental fluorosis (80.4%). Children 8-15 years ol
d had the highest rate (94.7%). Fluoride content of drinking water, fr
om two wells, was low (0.14 and 0.70 mg/L). Samples of food and tea we
re also tested. Total daily fluoride intake per adult was 4.14 mg. Flu
oride in food and tea was 70% of the total fluoride intake, and theref
ore was the main factor causing the endemic fluorosis.