title: Vertical force considerations in differential space closure.
authors.affiliation: Royal Dental College, Aarhus, Denmark.
authors.forename: B
authors.initials: B
authors.lastname: Melsen
authors.forename: V
authors.initials: V
authors.lastname: Fotis
authors.forename: C J
authors.initials: CJ
authors.lastname: Burstone
mesh_terms: D003799:Dental Stress Analysis; D003970:Diastema / Q000628:therapy; D004867:Equipment Design; D006801:Humans; D008312:Malocclusion, Angle Class II / Q000628:therapy; D009967:Orthodontic Appliances; D009971:Orthodontics, Corrective / Q000379:methods*