[The problem of the frequency of gingivitis in pre-school children under systematic care].
D002648:Child; D002675:Child, Preschool; D003731:Dental Caries / Q000453:epidemiology; D005891:Gingivitis / Q000453:epidemiology*; D006801:Humans; D009910:Oral Hygiene
Zur Frage der Gingivitis-Häufigkeit bei systematisch betreuten Vorschulkindern.