title: Influence of mandibular morphology on the hyoid bone in atypical deglutition: a correlational study.
abstract: OBJECTIVE
  evaluate the possible correlation with the radiographic position of the hyoid bone and mandibular angle in lateral radiographs of children with atypical deglutition.
  
  
  METHODS
  This was an observational study using cephalometric analysis of lateral teleradiographs for the distances of H-MP (hyoid to mandibular plane). Spearman's correlation analysis was performed with MA (mandibular angle) in two groups: the experimental group with atypical deglutition and the control group normal deglutition. Both groups included subjects in mixed dentition stage.
  
  
  RESULTS
  there was a significant moderate negative correlation between MA (mandibular angle) and hyoid bone (H-MP) in the normal group (R = -0.406, p = 0.021). However, there was no significant correlation between the MA and H-MP (R = 0.029, p = 0.83) in the group with atypical deglutition.
  
  
  CONCLUSIONS
  there is a moderate negative correlation between the position of the hyoid bone and mandibular angle in the group of normal swallowing and there is no correlation between variables H-MP and MA in the group of atypical swallowing.
authors: Discipline of Otorhinolaryngology, School of Medical Sciences Unicamp, Campinas, São Paulo, Brazil. almiro@fcm.unicamp.br
authors: Almiro J
authors: AJ
authors: Machado
authors: Agrício N
authors: AN
authors: Crespo
mesh_terms: D002508:Cephalometry; D002648:Child; D003679:Deglutition / Q000502:physiology*; D003680:Deglutition Disorders / Q000000981:diagnostic imaging / Q000473:pathology*; D003818:Dentition, Mixed; D005260:Female; D006801:Humans; D006928:Hyoid Bone / Q000033:anatomy & histology* / Q000000981:diagnostic imaging; D008297:Male; D008334:Mandible / Q000033:anatomy & histology* / Q000000981:diagnostic imaging; D011859:Radiography; D012189:Retrospective Studies; D018709:Statistics, Nonparametric