0.7 mg/L now the optimal concentration to provide the best balance of protection from caries while limiting the risk of dental fluorosis
New Water Fluoridation Guidelines:
Greater Access to Fluoride Along with Increased Incidence of Fluorosis Spurred the US Public Health Service Recommendation
Americans have more access to fluoride today. More than 90% of children and adolescents ages 5-19 and 70% of those 2-4 use fluoridated toothpaste. Other sources include mouth rinses, dietary fluoride supplements, and professionally applied fluoride treatments.
Implementation will lead to a reduction of approximately 25% in fluoride from drinking water alone and a 14% overall reduction in total fluoride intake. This is important because data shows that the prevalence of dental fluorosis has increased since the 1980's. Importantly, evidence shows that 0.7 mg/L is sufficient to achieve caries protective benefits while helping minimize the risk of dental fluorosis.Community water fluoridation remains of the most cost-effective means for delivering fluoride and preventing decay. More than 100 national and international healthcare organizations recognize the benefits of community water fluoridation.