[The influence of occlusion on the incidence of bruxism in 779 children in Shanghai].
OBJECTIVE
To explore the influence of occlusion on the incidence of bruxism in children.


METHODS
The incidence of bruxism in children was investigated from the questionnaire of 779 children's parents. The occlusion of these children was checked by professionals. The influence of the occlusion on the incidence of bruxism in children was analysed. Chi-square test was used for statistical analysis.


RESULTS
The occlusion of children with bruxism and children without bruxism had no significant difference (P>0.05). The incidence of bruxism did not increase in the children with mixed dentition(P>0.05).


CONCLUSIONS
The occlusion does not affect the incidence of bruxism in children. The mixed dentition does not increase the incidence of bruxism in children.
Cheng
Hui-juan
HJ
Department of Prosthodontics, School of Stomatology, Ninth People's Hospital, Shanghai Second Medical University. Shanghai 200011, China. chenghuijuan@yahoo.com
Chen
Yu-qin
YQ
Yu
Chun-hua
CH
Shen
Yong-qin
YQ
D002012:Bruxism / Q000453:epidemiology / Q000209:etiology*; D002648:Child; D002675:Child, Preschool; D003766:Dental Occlusion; D005260:Female; D006801:Humans; D015994:Incidence; D008297:Male; D008310:Malocclusion / Q000150:complications