Fluorosis in children appears as of 2004 to be increasing; however, it is not known whether this is from water fluoridation, the excessive use of fluoride-containing products, or both.
G. "Risk of Enamel Fluorosis in Nonfluoridated and Optimally Fluoridated Populations: Considerations for the Dental Professional."
Very mild to mild fluorosis has no effect on tooth function and may help prevent decay.
Fluorosis only affects children whose teeth are still developing within the gums.
"Risk Factors for Dental Fluorosis: A Review of the Recent Literature."
Too much fluoride may cause spotting (fluorosis) of the tooth enamel.