Relationship between dietary factors and dental fluorosis in school-age children of high fluoride areas

Objective To understand the effects of dietary factors on dental fluorosis,and to explore the effect of nutrient in take on the pervalence of dental fluorosis.Methods Four classes students were randomly selected from Jiaxiang county prmianry school to conduct a 24-hour dietary recall investigation.Results Compared to non-dental fluorosis children,the intakes of meal,egg,bean and milk among children with dental fluorosis were significantly low(P<0.05).Logistic regression analysis showed that prote in and calcium intakes were negatively correlated with the prevalence of dental fluorsis with odds ratios of 0.835,0.794,respectively.Conclusion Protein,clacium intake are protective factors of dental fluorosis and reasonable diet is one of the important measures for dental fluorosis prevention.