title: Something new about something old.
mesh_terms: D003728:Dental Calculus / Q000517:prevention & control; D003731:Dental Caries / Q000517:prevention & control*; D003773:Dental Plaque / Q000517:prevention & control*; D003802:Dentifrices / Q000627:therapeutic use*; D005459:Fluorides / Q000627:therapeutic use; D006801:Humans; D010510:Periodontal Diseases / Q000517:prevention & control
chemical_list: D003802:Dentifrices; D005459:Fluorides