title: Relationship between premature loss of primary teeth and the development of temporomandibular disorders in children.
abstract: OBJECTIVE
  This study evaluated the prevalence of signs of temporomandibular disorders (TMD) in children with and without premature loss of primary teeth.
  
  
  METHODS
  Fifty-eight children, aged 4-6 years, with missing primary molars, were compared with 58 age- and sex-matched control children with complete primary dentitions.
  
  
  METHODS
  All the children underwent an examination that consisted of palpation and assessment of the joints and associated muscles for tenderness and joint sounds. Maximum vertical opening and deviation during jaw opening were also recorded. Children with any single anomalous finding were designated positive for TMD signs.
  
  
  RESULTS
  There were no statistically significant differences in the prevalence of single or collective TMD signs between the two groups.
  
  
  CONCLUSIONS
  The results of this study show that premature loss of primary teeth, uncomplicated by other factors, does not appear to be an aetiological factor for TMD development.
authors: Department of Preventive Dental Sciences, Faculty of Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia.
authors: N M
authors: NM
authors: Farsi
authors: N
authors: N
authors: Alamoudi
mesh_terms: D016022:Case-Control Studies; D016009:Chi-Square Distribution; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D008297:Male; D008963:Molar / Q000503:physiopathology; D015588:Observer Variation; D010173:Palpation; D016059:Range of Motion, Articular; D013016:Sound; D013705:Temporomandibular Joint Disorders / Q000209:etiology*; D013997:Time Factors; D014080:Tooth Exfoliation; D016388:Tooth Loss / Q000150:complications*; D014094:Tooth, Deciduous / Q000503:physiopathology*