title: [Active elements of a palatal expansion plate (I)].
mesh_terms: D000202:Activator Appliances; D004867:Equipment Design; D006801:Humans; D009968:Orthodontic Appliances, Removable; D010155:Palatal Expansion Technique / Q000295:instrumentation*
vernacular_title: Die aktiven Elemente einer Plattenapparatur (I).