title: For four sixes.
abstract: This article reviews the literature on orthodontic treatment involving extraction of first molars and highlights many of the clinical considerations when treating such cases. Case reports illustrate the potential problems and indicate some solutions.
authors.affiliation: Royal Hospital Chesterfield, Calow, United Kingdom. JonSandler@aol.com
authors.forename: P J
authors.initials: PJ
authors.lastname: Sandler
authors.forename: R
authors.initials: R
authors.lastname: Atkinson
authors.forename: A M
authors.initials: AM
authors.lastname: Murray
mesh_terms: D000293:Adolescent; D002648:Child; D003131:Combined Modality Therapy; D005260:Female; D006801:Humans; D008297:Male; D008312:Malocclusion, Angle Class II / Q000000981:diagnostic imaging / Q000628:therapy; D008313:Malocclusion, Angle Class III / Q000000981:diagnostic imaging / Q000628:therapy; D008334:Mandible; D008437:Maxilla; D008963:Molar / Q000000981:diagnostic imaging / Q000601:surgery; D019516:Orthodontic Space Closure; D009969:Orthodontic Wires; D009971:Orthodontics, Corrective / Q000379:methods*; D011859:Radiography; D013997:Time Factors; D014081:Tooth Extraction