Fluoridation Fails North Dakota
Despite its 96.5% fluoridation rate, 70% of North Dakota Kindergartners have tooth decay - 47% are untreated. 93% of American Indian/Alaska Native Kindergartners in North Dakota have cavities - 62% of it is untreated.
https://www.hhs.nd.gov/sites/www/files/documents/Oral%20Health/nd-pre-kindergarten-oral-health.pdf