title: Sequential directional forces treatment: two Class II case reports.
abstract: Two types of Angle Class II, Division 1 malocclusion that were treated with Tweed-Merrifield directional forces are presented. The cases are entirely different. Each required a different diagnosis, but the results are similar. In both cases the resultant vector of all the orthodontic force systems was upward and forward in direction.
authors.affiliation: Department of Graduate Orthodontics, University of Tennessee, Cookeville.
authors.forename: J L
authors.initials: JL
authors.lastname: Vaden
mesh_terms: D001641:Bicuspid / Q000601:surgery; D002508:Cephalometry; D005115:Extraoral Traction Appliances; D005260:Female; D006801:Humans; D007180:Incisor / Q000473:pathology; D008312:Malocclusion, Angle Class II / Q000628:therapy*; D008334:Mandible / Q000473:pathology; D012690:Serial Extraction; D014087:Tooth Movement Techniques / Q000295:instrumentation / Q000379:methods*