title: [The clinical observation of treating Angle II (1) malocclusion in adults with Tip-Edge appliance].
abstract: OBJECTIVE
  The aim of this study was to observe the effects of Tip-Edge Differential Straight-Arch Technique in treating Angle II (1) malocclusion.
  
  
  METHODS
  13 adults with Angle II (1)  malocclusion were treated with Tip-Edge appliance. The results of cephalometric measurements before and after treatment were statistically analyzed.
  
  
  RESULTS
  The average treatment time was 16.2 months. The results of cephalometric measurement showed that UIC-AP decreased by 3.72 mm (P < 0.01), LIC-AP decreased by 1.03 mm (P < 0.01), LIC-MP decreased by 1.59 mm (P < 0.01), L6-MP increased by 0.99 mm (P <0.05), the over jet decreased by 3.73 mm (P < 0.01).
  
  
  CONCLUSIONS
  Tip-Edge appliance can effectively change the dento-alveolar position by means of the differential mechanics.
authors.affiliation: Department of Orthodontics, Red Cross Hospital of Yunnan Province, Kunming 650021, China.
authors.forename: Xiaojun
authors.initials: X
authors.lastname: Liu
authors.forename: Shuang
authors.initials: S
authors.lastname: Yao
authors.forename: Shuang
authors.initials: S
authors.lastname: Yang
mesh_terms: D000293:Adolescent; D000328:Adult; D002508:Cephalometry; D005260:Female; D006801:Humans; D008297:Male; D008312:Malocclusion, Angle Class II / Q000628:therapy*; D016382:Orthodontic Appliance Design; D009967:Orthodontic Appliances; D016910:Orthodontic Brackets; D009969:Orthodontic Wires; D014087:Tooth Movement Techniques / Q000295:instrumentation* / Q000379:methods