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Prevalence of fluorosis in primary dentition in Udaipur City, Rajasthan


Aims: To assess the prevalence of dental fluorosis in primary dentition and find its association with fluoride concentration of water in Udaipur city, Rajasthan, India. Methods: A sample of 1157 kinder garden students aged 3-5 years were randomly selected from 19 schools and examined for dental fluorosis using the Dean’s Fluorosis Index. Results: Out of 1157 students (mean age 4.06±0.84) examined the prevalence of dental fluorosis was 43.1% (n=499). Incisors were the most commonly affected 85.77% (maxillary incisors=82.5% and mandibular incisors=3.2%) followed by canines 13.82% (maxillary canine=9.01% and mandibular canine=4.81%) and molars 0.4% (maxillary molars=0 and mandibular molars=0.4%). There was a significant association between prevalence rate and severity of dental fluorosis with the water fluoride concentration with p<0.05. Conclusions: Primary tooth fluorosis was most commonly seen in incisors and the primary molars were the least affected. Also the prevalence and the severity of the primary tooth fluorosis was directly proportional to the fluoride concentration of the water i.e. the prevalence and severity was higher in zones with high water fluoride concentration as compared to the zones with lower water fluoride concentration.

KEY WORDS: Dental Fluorosis, Drinking water, Prevalence, Primary Dentition