title: A fan-shaped maxillary expander.
authors.affiliation: Department of Orthodontics, University of Insubria, Varese, Italy.
authors.forename: L
authors.initials: L
authors.lastname: Levrini
authors.forename: V
authors.initials: V
authors.lastname: Filippi
mesh_terms: D002648:Child; D006801:Humans; D008297:Male; D016382:Orthodontic Appliance Design; D010155:Palatal Expansion Technique / Q000295:instrumentation*