title: [Activator and simple double plate. Observation of indications].
mesh_terms: D000202:Activator Appliances; D006801:Humans; D009968:Orthodontic Appliances, Removable; D009971:Orthodontics, Corrective; D063173:Retrognathia / Q000628:therapy
vernacular_title: Aktivator und Vorschubdoppelplatte. Bemerkungen zur Indikation.