title: Mandibular range of motion in patients with idiopathic peripheral facial palsy.
abstract: Regarding orofacial motor assessment in facial paralysis, quantitative measurements of the face are being used to establish diagnosis, prognosis and treatment planning.
  
  
  OBJECTIVE
  To assess the prevalence of changes in mandibular range of motion in individuals with peripheral facial paralysis.
  
  
  METHODS
  Prospective study. We had 56 volunteers, divided in two groups: G1 made up of 28 individuals with idiopathic facial paralysis (6 males and 22 females); 14 with manifestations on the right side of the face and 14 on the left side; time of onset varied between 6-12 months; G2 with 28 healthy individuals paired by age and gender to G1. In order to assess mandibular range of motion, a digital caliper was used. The following measurements were made: 1) middle line; 2) maximum oral opening; 3) lateralization to the right; 4) lateralization to the left; 5) protrusion; 6) horizontal overlap.
  
  
  RESULTS
  Statistically significant differences between the groups were observed for maximum oral opening, lateralization to the left and protrusion. G1 presented smaller measurement values than G2.
  
  
  CONCLUSIONS
  Patients with facial paralysis present significant reduction of mandibular range of motion. The results support the suggestion of incorporating functional evaluation of the temporomandibular joint to the existing facial paralysis clinical assessment protocols.
authors.affiliation: Speech and Hearing Department, University of São Paulo Hospital, FMUSP, Brazil.
authors.forename: Fernanda Chiarion
authors.initials: FC
authors.lastname: Sassi
authors.forename: Laura Davison
authors.initials: LD
authors.lastname: Mangilli
authors.forename: Michele Conceição
authors.initials: MC
authors.lastname: Poluca
authors.forename: Ricardo Ferreira
authors.initials: RF
authors.lastname: Bento
authors.forename: Claudia Regina Furquim de
authors.initials: CR
authors.lastname: Andrade
mesh_terms: D000293:Adolescent; D000328:Adult; D020330:Bell Palsy / Q000503:physiopathology*; D005260:Female; D006801:Humans; D008297:Male; D008334:Mandible / Q000503:physiopathology*; D008875:Middle Aged; D015995:Prevalence; D011446:Prospective Studies; D016059:Range of Motion, Articular / Q000502:physiology*; D055815:Young Adult