title: Lengthening temporalis myoplasty and brain plasticity: a functional magnetic resonance imaging study.
abstract: BACKGROUND
  Lengthening temporalis myoplasty (LTM) is a technique developed since ten years for facial paralysis. A spontaneous smile is acquired after this surgery explains by brain plasticity and the aim of the study is to confirm this plasticity by functional magnetic resonance imaging.
  
  
  METHODS
  A functional magnetic resonance imaging (fMRI) was performed at various time points in ten patients who were operated on LTM during one year.
  
  
  RESULTS
  Two different areas were found to be involved in chewing and smiling. We observed changes in the areas involved in smiling and chewing three months after surgery, and these changes persisted for at least one year.
  
  
  CONCLUSIONS
  Our findings thus confirm that brain plasticity underlies the clinical observation of acquisition of a spontaneous smile.
authors.affiliation: Maxillo-facial and plastic surgery unit, Caen university hospital, avenue de la Côte-de-Nâcre, Caen cedex, France. rachid-cmf@hotmail.fr
authors.forename: R
authors.initials: R
authors.lastname: Garmi
authors.forename: D
authors.initials: D
authors.lastname: Labbé
authors.forename: O
authors.initials: O
authors.lastname: Coskun
authors.forename: J-F
authors.initials: JF
authors.lastname: Compère
authors.forename: H
authors.initials: H
authors.lastname: Bénateau
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001732:Bite Force; D001931:Brain Mapping; D002540:Cerebral Cortex / Q000098:blood supply / Q000503:physiopathology*; D002648:Child; D005158:Facial Paralysis / Q000503:physiopathology / Q000601:surgery*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007089:Image Enhancement; D007090:Image Interpretation, Computer-Assisted; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D009416:Nerve Regeneration / Q000502:physiology; D009473:Neuronal Plasticity / Q000502:physiology*; D012039:Regional Blood Flow / Q000502:physiology; D012904:Smiling / Q000502:physiology*; D013703:Temporal Muscle / Q000294:innervation / Q000601:surgery*; D055815:Young Adult
keywords: Brain plasticity; Facial palsy; Functional magnetic resonance imaging; Imagerie par résonance magnétique; Myoplastie; Myoplasty; Paralysie faciale; Plasticité cérébrale