title: A randomized controlled trial comparing the quadhelix and the expansion arch for the correction of crossbite.
authors.affiliation: Liverpool, UK.
authors.forename: Jayne
authors.initials: J
authors.lastname: Harrison
mesh_terms: D006801:Humans; D008310:Malocclusion / Q000628:therapy*; D016382:Orthodontic Appliance Design; D010155:Palatal Expansion Technique / Q000295:instrumentation*; D016032:Randomized Controlled Trials as Topic