title: Twin block--eight advantages of this amazing new functional appliance.
authors.forename: J
authors.initials: J
authors.lastname: Witzig
mesh_terms: D000202:Activator Appliances; D002648:Child; D006801:Humans; D008297:Male; D008312:Malocclusion, Angle Class II / Q000628:therapy*; D010155:Palatal Expansion Technique; D014716:Vertical Dimension