title: Kinematic analysis of mandibular motion before and after orthognathic surgery for skeletal Class III malocclusion: A pilot study.
abstract: OBJECTIVE
  The aim of the study was to detect the changes in 3D mandibular motion after orthognathic surgery for skeletal Class III malocclusion.
  
  
  METHODS
  Using a 3D motion analyzer, free mandibular border movements were recorded in nine patients successfully treated for skeletal Class III malocclusion and in nine patients scheduled for orthognathic surgery. Data were compared using Mann-Whitney non-parametric U-test.
  
  
  RESULTS
  The results showed no differences between the groups in the total amount of mouth opening, protrusion, and in lateral excursions, but the percentage of mandibular movement explained by condylar translation was significantly increased after surgery (20% vs. 23.6%). During opening, the post-surgery patients showed a more symmetrical mandibular interincisal point and condylar path than pre-surgery patients (p < 0.01).
  
  
  CONCLUSIONS
  Patients treated with orthognathic surgery for skeletal Class III malocclusion recover a good and symmetric temporomandibular joint function.
authors.affiliation: a Laboratorio di Anatomia Funzionale dell'Apparato Stomatognatico (LAFAS), Facoltà di Medicina e Chirurgia, Dipartimento di Scienze Biomediche per la Salute, Functional Anatomy Research Center (FARC) , Università degli Studi di Milano , via Mangiagalli 31, I-20133 Milano , Italy.
authors.forename: Alessandro
authors.initials: A
authors.lastname: Ugolini
authors.affiliation: a Laboratorio di Anatomia Funzionale dell'Apparato Stomatognatico (LAFAS), Facoltà di Medicina e Chirurgia, Dipartimento di Scienze Biomediche per la Salute, Functional Anatomy Research Center (FARC) , Università degli Studi di Milano , via Mangiagalli 31, I-20133 Milano , Italy.
authors.forename: Andrea
authors.initials: A
authors.lastname: Mapelli
authors.affiliation: a Laboratorio di Anatomia Funzionale dell'Apparato Stomatognatico (LAFAS), Facoltà di Medicina e Chirurgia, Dipartimento di Scienze Biomediche per la Salute, Functional Anatomy Research Center (FARC) , Università degli Studi di Milano , via Mangiagalli 31, I-20133 Milano , Italy.
authors.forename: Marzia
authors.initials: M
authors.lastname: Segù
authors.affiliation: a Laboratorio di Anatomia Funzionale dell'Apparato Stomatognatico (LAFAS), Facoltà di Medicina e Chirurgia, Dipartimento di Scienze Biomediche per la Salute, Functional Anatomy Research Center (FARC) , Università degli Studi di Milano , via Mangiagalli 31, I-20133 Milano , Italy.
authors.forename: Domenico
authors.initials: D
authors.lastname: Galante
authors.affiliation: a Laboratorio di Anatomia Funzionale dell'Apparato Stomatognatico (LAFAS), Facoltà di Medicina e Chirurgia, Dipartimento di Scienze Biomediche per la Salute, Functional Anatomy Research Center (FARC) , Università degli Studi di Milano , via Mangiagalli 31, I-20133 Milano , Italy.
authors.forename: Fernanda V
authors.initials: FV
authors.lastname: Sidequersky
authors.affiliation: a Laboratorio di Anatomia Funzionale dell'Apparato Stomatognatico (LAFAS), Facoltà di Medicina e Chirurgia, Dipartimento di Scienze Biomediche per la Salute, Functional Anatomy Research Center (FARC) , Università degli Studi di Milano , via Mangiagalli 31, I-20133 Milano , Italy.
authors.forename: Chiarella
authors.initials: C
authors.lastname: Sforza
mesh_terms: D000328:Adult; D001696:Biomechanical Phenomena; D005260:Female; D006801:Humans; D021621:Imaging, Three-Dimensional; D008297:Male; D008313:Malocclusion, Angle Class III / Q000000981:diagnostic imaging / Q000503:physiopathology* / Q000601:surgery; D008334:Mandible / Q000000981:diagnostic imaging / Q000503:physiopathology*; D008875:Middle Aged; D009068:Movement / Q000502:physiology; D056948:Orthognathic Surgical Procedures; D010865:Pilot Projects; D055815:Young Adult
keywords: 3D; Kinematics; Motion analysis; Skeletal class III; Surgery