title: Class II malocclusion treatment using Jasper Jumper appliance associated to intermaxillary elastics: a case report.
abstract: BACKGROUND
  Skeletal, dental and profile discrepancies can be amended by using functional orthodontic appliances.
  
  
  OBJECTIVE
  This study is a report of the treatment of a patient, 11 years and 4 months old, with Class II, division 1, malocclusion, convex profile, protrusion of upper incisors, pronounced overjet and overbite, and mild crowding.
  
  
  METHODS
  The patient was treated with a Jasper Jumper associated to fixed appliances for 6 months and Class II intermaxillary elastics (3/16-in) during the last 4 months. After debonding, a Hawley retainer was used during daytime and a modified Bionator for night use during one year. In the lower dental arch a bonded lingual retainer was used. This treatment combination improved the profile, as well as the overjet, overbite and molar relation.
  
  
  RESULTS
  There was clockwise mandibular rotation and increase of lower anterior facial height. The lower incisors were protruded and extruded and the lower molars were extruded. The centric occlusal relation was checked and it was coincident to the maximum usual intercuspation.
  
  
  CONCLUSIONS
  It was demonstrated that the Jasper Jumper is an efficient alternative to Class II malocclusion treatment, providing improvement in the facial profile, although the changes are more dentoalveolar than skeletal.
authors.affiliation: FOB-USP, Brazil. francyle@gmail.com
authors.forename: Francyle Simões
authors.initials: FS
authors.lastname: Herrera-Sanches
authors.forename: José Fernando Castanha
authors.initials: JF
authors.lastname: Henriques
authors.forename: Guilherme
authors.initials: G
authors.lastname: Janson
authors.forename: Leniana Santos
authors.initials: LS
authors.lastname: Neves
authors.forename: Karina Jerônimo Rodrigues Santiago
authors.initials: KJ
authors.lastname: de Lima
authors.forename: Rafael Pinelli
authors.initials: RP
authors.lastname: Henriques
authors.forename: Lucelma Vilela
authors.initials: LV
authors.lastname: Pieri
mesh_terms: D002508:Cephalometry; D002648:Child; D003724:Dental Arch / Q000502:physiology; D006801:Humans; D008297:Male; D008312:Malocclusion, Angle Class II / Q000628:therapy*; D017289:Orthodontic Appliances, Functional; D009971:Orthodontics, Corrective / Q000295:instrumentation*
keywords: Angle Class II malocclusion; Corrective orthodontics; Functional orthodontic appliances