Hacker News new | past | comments | ask | show | jobs | submit login

> Poor people in the US are capable of using fluoride toothpaste and flossing

This is absolutely not a substitute for fluoride in drinking water, which is most important for kids. When your teeth are forming below the gumline, the fluoride you ingest strengthens them. Brushing gums with fluoride doesn’t help.




Consider applying for YC's Summer 2025 batch! Applications are open till May 13

Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact

Search: