Additional Coverage:
Fluoride and Drinking Water
Fluoride, a mineral, strengthens teeth and reduces cavities by fighting bacteria that damage teeth. Experts recommend prevention as the best way to maintain dental health.
In 1950, the US began adding fluoride to drinking water to prevent tooth decay. Water fluoridation has significantly reduced cavities in children and adults.
The recommended fluoride level in drinking water is 0.7 milligrams per liter, which is considered safe and effective. However, excessive fluoride can cause fluorosis, a condition that discolors teeth.
Despite its benefits, fluoride in drinking water has been controversial. Some studies have linked high fluoride exposure to lower IQ in children. However, other reviews have questioned these findings.
Despite these concerns, the American Dental Association and other expert groups recommend using fluoride toothpaste and fluoridated water to protect teeth from cavities.
The CDC maintains that water fluoridation is the most cost-effective way to provide fluoride to all community members, regardless of income or education level.