The caries rate is decreasing this results in the need for fewer dentist.
NIDCR caires study last done 1999-2004 data
Several studies conducted in fluoridated and non fluoridated communities suggested that this method (fluoride in water systems) of delivering fluoride may be unnecessary for caries prevention, particularly in the industrialized countries where the caries level has became low." 1
1. Community water fluoridation and caries prevention: a critical review
Pizzo G, Piscopo MR, Pizzo I, Giuliana G. Clin Oral Investig. 2007;11(3):189-93