Preventive dentistry.
D003731:Dental Caries / Q000517:prevention & control*; D003743:Dental Enamel / Q000187:drug effects*; D005460:Fluorides, Topical / Q000627:therapeutic use*; D005782:Gels / Q000627:therapeutic use; D006801:Humans
D005460:Fluorides, Topical; D005782:Gels