title: The plastic fantastic vs. the metal merry-go-round.
authors.forename: Terrance J
authors.initials: TJ
authors.lastname: Spahl
mesh_terms: D006801:Humans; D008312:Malocclusion, Angle Class II / Q000628:therapy; D017289:Orthodontic Appliances, Functional; D009972:Orthodontics, Interceptive / Q000295:instrumentation