USA - Tennessee is 96% fluoridated:NYSCOF

"By the time a child gets to be 2 or 3 years old, they already have tooth decay," said Dr. Suzanne Hayes, director of oral health services in the Tennessee Department of Health.
Recent studies also have linked poor dental health to chronic disease. Meharry researchers are examining whether gum disease in black women causes miscarriages and pre-term labor. A new study in the Journal of Periodontology found that people with heart disease were more likely to have tooth bone loss and oral bleeding than people who did not have heart disease. Many earlier studies have also indicated that chronic infections and the inflammatory response from tooth and gum disease might initiate or worsen hardening of the arteries.