After 65 years of water fluoridation in the United States reaching 70% of the population on public water supplies and virtually 100% via the fluoride-saturated food supply:

The total costs of dental care are not insignificant. Between 2009 and 2018, annual spending for all dental services in the United States is expected to increase 58 percent. Approximately one-third of the money spent on dental services goes to services for children.

Consider the military. A 2000 study of the armed forces found that 42 percent of incoming Army recruits had at least one dental condition that needed to be treated before they could be deployed. More than 15 percent of recruits had four or more teeth in urgent need of repair.

http://www.pewcenteronthestates.org/report_detail.aspx?id=57465