title: [Treatment of Class II division 2 malocclusion with herbst appliance in young adults].
abstract: OBJECTIVE
  To evaluate the effects of angle Class II division 2 malocclusion treated with Herbst appliance in young adults.
  
  
  METHODS
  Cast splint Herbst appliance and multi-bracket appliance were used to treat 12 patients with Class II division 2 malocclusion aged from 16 to 25 years old. The lateral cephalograms were measured with Winceph 8.0 software and statistical analysis was carried out by SPSS 13.0 software.
  
  
  RESULTS
  The changes in SNA, Co-Go, Go-Po after treatment had no statistical significance (P>0.05). The SNB increased and ANB decreased after treatment. Upper and lower incisors labially inclined and inter-incisor angle increased. Upper posterior teeth had distal movement, lower posterior teeth had mesial movement and extrusion. Mandibular plane angle and occlusal plane angle had clockwise rotation. The overbite decreased significantly, and the molar relationship changed from Class II to Class I in all patients.
  
  
  CONCLUSIONS
  Herbst appliance combined with multi-bracket appliance can be used effectively for correcting Class II division 2 malocclusion in young adults.
authors.affiliation: Dept. of Orthodontics, Stomatological Hospital of Nanchang University, Nanchang 330006, China.
authors.forename: Ting
authors.initials: T
authors.lastname: Sang
authors.forename: Jun
authors.initials: J
authors.lastname: Wu
authors.forename: Zhen
authors.initials: Z
authors.lastname: Huang
authors.forename: Ying
authors.initials: Y
authors.lastname: Zheng
mesh_terms: D000293:Adolescent; D000328:Adult; D002508:Cephalometry; D005260:Female; D006801:Humans; D007180:Incisor; D008312:Malocclusion, Angle Class II; D008334:Mandible; D017289:Orthodontic Appliances, Functional; D055815:Young Adult