title: [Projection of pictures, slides and films, in dental practice].
mesh_terms: D001296:Audiovisual Aids; D002933:Cineradiography; D003812:Dentist-Patient Relations; D006267:Health Education, Dental / Q000295:instrumentation*; D006801:Humans; D010781:Photography
vernacular_title: "Projektion von Bildern, Diapositiven und Filmen in der zahnärztlichen Praxis".