Hardness of enamel as affected by fluorides.
D003743:Dental Enamel / Q000187:drug effects*; D005459:Fluorides; D005461:Fluorine / Q000628:therapy*; D017611:Fluorine Compounds / Q000628:therapy*; D006244:Hardness; D006801:Humans; D014070:Tooth
FLUORINE AND COMPOUNDS/therapy; TEETH/enamel--effect of fluorides