Fluoride in Water · Nature's Cavity Fighter
unseel.com · hydroxyapatite → fluorapatite · enamel · 0.7 ppm
Optimal ≈ 0.7 mg/L
Reaction OH⁻ → F⁻ swap
phase
F⁻ ion (fluoride)
Ca²⁺ (enamel)
PO₄ phosphate
OH⁻ site
Fluorapatite glow
Unseel.com · Fluoride in Water