Fluoride 101: What It Is, Why It Works
How it protects: Fluoride helps remineralize weak spots and lowers bacterial acid activity. Where kids get it: fluoride toothpaste, varnish at the dentist, and optimally fluoridated water (0.7 ppm). At home: smear under 3; pea‑size 3–6+; brush 2×/day; avoid vigorous rinsing after brushing. Higher‑risk kids: may benefit from professional varnish 2×/year or more often as …


