The introduction of flouride to drinking water saw a massive improvement in the public’s dental health across the board. It is still widely considered to be one of the greatest public health initiatives of the 20th century.
You should also keep in mind that drinking water always has some level of natural flouride in it. Just the concentration varies by region. Public health officials discovered that areas with higher amounts of natural flouride also had lower rates of cavities and tooth decay. So some cities have their water flouridated to bring their flouride content up to beneficial levels.
The introduction of flouride to drinking water saw a massive improvement in the public’s dental health across the board. It is still widely considered to be one of the greatest public health initiatives of the 20th century.
You should also keep in mind that drinking water always has some level of natural flouride in it. Just the concentration varies by region. Public health officials discovered that areas with higher amounts of natural flouride also had lower rates of cavities and tooth decay. So some cities have their water flouridated to bring their flouride content up to beneficial levels.