Why is water fluoridation, which is the controlled adjustment of fluoride to public water supply, done?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. To prevent tooth decay.
A) Water fluoridation prevents tooth decay by providing frequent and consistent contact with low levels of fluoride. Most water contains some fluoride but usually not enough to prevent cavities. Community water systems can add just the right amount of fluoride to local drinking water to prevent cavities.