title: A simple removable acrylic-free retainer (the Sarhan type).
authors.forename: O A
authors.initials: OA
authors.lastname: Sarhan
authors.forename: T E
authors.initials: TE
authors.lastname: Fones
mesh_terms: D006801:Humans; D008670:Metals; D016382:Orthodontic Appliance Design; D009968:Orthodontic Appliances, Removable; D009969:Orthodontic Wires; D010349:Patient Compliance
chemical_list: D008670:Metals