title: [The related factors of bruxism in children].
abstract: OBJECTIVE
  To investigate the related factors of children bruxism.
  
  
  METHODS
  Data of 117 children with primary and mixed dentition of 4-10 years of age were collected in the present study. There were 59 children in bruxism group and 58 children in control group. Oral and temporomandibular joint examinations were carried out on each child, and the parents were asked to fill the questionnaires. The data were statistically analyzed, and the relationship between the factors and the occurrence of bruxism was examined.
  
  
  RESULTS
  The odd ratio (OR) for psychology factor, occlusal factor, specific sleep posture, parents heredity and relatives heredity were 1.074, 1.528, 4.472, 11.164 and 8.757, respectively.
  
  
  CONCLUSIONS
  Psychology factor, occlusal factor, specific sleep posture and heredity factor are the related factors of children bruxism.
authors.affiliation: Department of Pediatric Dentistry, Peking University School and Hospital of Stomatology, Beijing 100081, China.
authors.forename: Xin
authors.initials: X
authors.lastname: Zhu
authors.forename: Shu-Guo
authors.initials: SG
authors.lastname: Zheng
authors.forename: Yi
authors.initials: Y
authors.lastname: Zheng
authors.forename: Kai-Yuan
authors.initials: KY
authors.lastname: Fu
authors.forename: Yong-Sheng
authors.initials: YS
authors.lastname: Zhou
authors.forename: Chang
authors.initials: C
authors.lastname: Yu
mesh_terms: D002012:Bruxism / Q000453:epidemiology*; D002648:Child; D002675:Child, Preschool; D003818:Dentition, Mixed; D005260:Female; D006801:Humans; D016015:Logistic Models; D008297:Male; D016017:Odds Ratio; D011795:Surveys and Questionnaires; D014094:Tooth, Deciduous