title: The Halb: an appliance for mandibular arch alteration.
authors.forename: A J
authors.initials: AJ
authors.lastname: Ricci
authors.forename: M J
authors.initials: MJ
authors.lastname: Hatrak
mesh_terms: D000202:Activator Appliances; D005260:Female; D006801:Humans; D008297:Male; D008310:Malocclusion / Q000628:therapy*; D008334:Mandible / Q000473:pathology; D009971:Orthodontics, Corrective / Q000379:methods*