title: Second Class Resolver: a retrospective analysis.
abstract: OBJECTIVE
  To evaluate the use of Second Class Resolver (SCR), a new fixed orthopaedic appliance, for the treatment of skeletal Class II malocclusion in growing subjects.
  
  
  METHODS
  Design Retrospective analysis. Forty subjects were treated with Second Class Resolver (SCR). The mean age was 8 years at the beginning of treatment and 10 years at the end of treatment. Digital cephalometric superimpositions on lateral radiographs taken at start and end of treatment were assessed. The cephalometric values were statistically analysed.
  
  
  RESULTS
  Cephalometric analysis of changes during treatment shows reduction of ANB angle (mean 2°); reduction of Witts Index (mean 3 mm); reduction of Maxillo-Mandibular angle (MM) (mean 1°); reduction of SNA (angle mean 3°); reduction of gonial angle (mean 1.8°); increase of the mandibular branch length (mean 5 mm); increase of mandibular body (mean 2.9°).
  
  
  CONCLUSIONS
  The Second Class Resolver can be beneficially used for the treatment of Class II malocclusion.
authors.affiliation: Department of Oral Science, Nano and Biotechnologies, G. D'Annunzio, University of Chieti- Pescara, Chieti, Italy.
authors.forename: M
authors.initials: M
authors.lastname: D'Attilio
authors.affiliation: Department of Oral Science, Nano and Biotechnologies, G. D'Annunzio, University of Chieti- Pescara, Chieti, Italy.
authors.forename: D
authors.initials: D
authors.lastname: Rodolfino
authors.affiliation: Department of Oral Science, Nano and Biotechnologies, G. D'Annunzio, University of Chieti- Pescara, Chieti, Italy.
authors.forename: A
authors.initials: A
authors.lastname: Filippakos
authors.affiliation: Department of Oral and Maxillofacial Science, Sapienza University of Rome (Italy).
authors.forename: M
authors.initials: M
authors.lastname: Saccucci
authors.affiliation: Department of Oral Science, Nano and Biotechnologies, G. D'Annunzio, University of Chieti- Pescara, Chieti, Italy.
authors.forename: F
authors.initials: F
authors.lastname: Festa
authors.affiliation: Department of Oral Science, Nano and Biotechnologies, G. D'Annunzio, University of Chieti- Pescara, Chieti, Italy.
authors.forename: D
authors.initials: D
authors.lastname: Tripodi
mesh_terms: D002508:Cephalometry / Q000379:methods; D002648:Child; D005500:Follow-Up Studies; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000379:methods; D007180:Incisor / Q000473:pathology; D008312:Malocclusion, Angle Class II / Q000628:therapy*; D008334:Mandible / Q000473:pathology; D019186:Mandibular Advancement / Q000295:instrumentation; D008437:Maxilla / Q000473:pathology; D009295:Nasal Bone / Q000473:pathology; D016382:Orthodontic Appliance Design; D012189:Retrospective Studies; D012658:Sella Turcica / Q000473:pathology