title: Jaw movement during the speech in children with allergic rhinitis.
abstract: BACKGROUND
  Allergic rhinitis can cause changes in stomatognathic functions, which may alter the mandibular dynamics. Electrognathography is used in the recording of jaw movements, making it valid for analysis of movements in speech.
  
  
  OBJECTIVE
  To characterize the amplitude and velocity of jaw movements during speech in children with and without allergic rhinitis.
  
  
  METHODS
  The sample consisted of 32 children aged 7-12 years, treated at a university hospital, divided into two groups: one with rhinitis and the other without rhinitis. To capture the jaw movements during speech, we used an electrognathography with the aid of a list of phonetically balanced figures. For the analysis of data, we used, in addition to descriptive statistics, nonparametric tests, Spearman correlation coefficient and the Mann-Whitney test, with a significant value of p=0.05.
  
  
  RESULTS
  No significant difference was observed in jaw movements between groups, with values of p equals to 0.175, 0.650, and 0.462 for amplitude and jaw opening and closing velocity, respectively. However, a strong correlation was observed between the variables velocity and amplitude of mouth opening, being slightly higher in the group of children with allergic rhinitis.
  
  
  CONCLUSIONS
  The amplitude and velocity of jaw movements are found to be similar in children with and without allergic rhinitis, and a correlation exits between these variables. In addition, they were more heterogeneous in the group without allergic rhinitis.
authors.affiliation: Universidade Federal de Pernambuco, Recife, PE, BR.
authors.forename: Sandro Júnior Henrique
authors.initials: SJ
authors.lastname: Lima
authors.affiliation: Department of Speech Language Pathology and Audiology, Universidade Federal do Rio Grande do Norte, Recife, PE, BR.
authors.forename: Leandro de Araújo
authors.initials: Lde A
authors.lastname: Pernambuco
authors.affiliation: Universidade Federal do Rio Grande do Norte, Recife, PE, BR.
authors.forename: Aline de Lima
authors.initials: Ade L
authors.lastname: Lins
authors.affiliation: Universidade Federal de Pernambuco, Recife, PE, BR.
authors.forename: Lucas Carvalho Aragão
authors.initials: LC
authors.lastname: Albuquerque
authors.affiliation: Department of Speech Language Pathology and Audiology, Universidade Federal de Pernambuco, Recife, PE, BR.
authors.forename: Hilton Justino da
authors.initials: HJ
authors.lastname: Silva
mesh_terms: D016022:Case-Control Studies; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D008334:Mandible; D009058:Mouth Breathing / Q000209:etiology*; D065631:Rhinitis, Allergic / Q000150:complications*; D013060:Speech / Q000502:physiology*; D013062:Speech Articulation Tests; D013704:Temporomandibular Joint / Q000503:physiopathology; D013705:Temporomandibular Joint Disorders / Q000503:physiopathology*