1 Answer | Add Yours
(eNotes editors may only answer one question per response. If you need more help, please resubmit other questions separately.)
Research attempting to measure the impact of fluoride upon tooth decay began in the early 1900's. By the mid-1900's, the benefits of adding fluoride to drinking water were well-documented. As a result of fluoridated drinking water, a 1945 study showed a reduction of 50%-70% in the number of caries in communities using fluoridated water as compared with communities using water without additional fluoride.
Fluoridation of drinking water "is the most cost-effective method for preventing dental caries (cavities)." Adding fluoride to public water ensures that the benefits are available to all persons, regardless of age, socio-economic status, or other variables. While many toothpastes and other commercial products may also contain fluoride, these products may not be used by all persons.
We’ve answered 319,205 questions. We can answer yours, too.Ask a question