This document summarizes different methods of fluoride use for preventing dental caries. It discusses systemic fluorides including water fluoridation, school water fluoridation, fluoridated salt, and dietary fluoride supplements. It also discusses topical fluorides including professionally and self-applied topical fluoride treatments, fluoridated toothpastes, and fluoride mouth rinses. Water fluoridation and fluoridated toothpastes are highlighted as two of the most effective and widespread methods for caries prevention.