title: Treatment and posttreatment effects induced by the Forsus appliance: A controlled clinical study.
abstract: OBJECTIVE
  To evaluate treatment and posttreatment dentoskeletal effects induced by the Forsus device (FRD) in growing patients with Class II malocclusion in a retrospective controlled clinical study.
  
  
  METHODS
  Thirty-six Class II patients (mean [SD] age 12.3 [1.2] years) were treated consecutively with the FRD protocol and compared with a sample of 20 subjects with untreated Class II malocclusion (mean [SD] age 12.2 [0.9] years). Lateral cephalograms were taken at the beginning of treatment, at the end of comprehensive treatment (after 2.3 ± 0.4 years), and at a postretention period (after 2.3 ± 1.1 years from the end of comprehensive treatment). Statistical comparisons were carried out with the unpaired t-test and Benjamini-Hochberg correction (P < .05).
  
  
  RESULTS
  After comprehensive treatment, the FRD sample showed a significant restriction of the sagittal maxillary growth together with a significant correction in overjet, overbite, and molar relationship. During the overall observation interval, the FRD group exhibited no significant sagittal or vertical skeletal changes, while significant improvements were recorded in overjet (-3.8 mm), overbite (-1.5 mm), and molar relationship (+3.7 mm).
  
  
  CONCLUSIONS
  The FRD protocol was effective in correcting Class II malocclusion mainly at the dentoalveolar level when evaluated 2 years after the end of comprehensive treatment.
authors.affiliation: a  PhD Student, Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy.
authors.forename: Giorgio
authors.initials: G
authors.lastname: Cacciatore
authors.forename: Luis Tomas Huanca
authors.initials: LT
authors.lastname: Ghislanzoni
authors.forename: Lisa
authors.initials: L
authors.lastname: Alvetro
authors.forename: Veronica
authors.initials: V
authors.lastname: Giuntini
authors.forename: Lorenzo
authors.initials: L
authors.lastname: Franchi
mesh_terms: D000293:Adolescent; D002508:Cephalometry / Q000379:methods; D002648:Child; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008312:Malocclusion, Angle Class II / Q000628:therapy*; D008334:Mandible / Q000473:pathology; D008437:Maxilla / Q000254:growth & development / Q000473:pathology; D008963:Molar / Q000473:pathology; D009295:Nasal Bone / Q000473:pathology; D016382:Orthodontic Appliance Design; D017289:Orthodontic Appliances, Functional; D016910:Orthodontic Brackets; D018704:Orthodontic Retainers; D009969:Orthodontic Wires; D057887:Overbite / Q000628:therapy; D012189:Retrospective Studies; D012658:Sella Turcica / Q000473:pathology; D016896:Treatment Outcome; D014716:Vertical Dimension
keywords: Class II treatment; Fixed functional appliances