Fluorosis is a condition where there’s so much flourine in the water that one’s teeth start getting brownish yellow spots. That’s not the level used in most wat

Fluorosis is a condition where there’s so much flourine in the water that one’s teeth start getting brownish yellow spots. That’s not the level used in most water supplies. The study itself groups slight fluorosis areas with nonfluorosis as having no effect. US water supplies are usually managed to ensure no fluorosis even when the water is fluorinated. https://en.wikipedia.org/wiki/Dental_fluorosis https://en.wikipedia.org/wiki/Dental_fluorosis