[Effect of malocclusion on self-esteem of children aging 8 to 10 years in Chongqing].

PURPOSE：This study was aimed to investigate the effect of malocclusion on self-esteem of children aging 8 to 10 years in Chongqing. METHODS：According to the standards of the Fourth National Oral Health Epidemiological sampling survey，a multistage, stratified, cluster, and random sampling method was used to select 1 588 children from 12 schools in 3 districts and 3 counties in Chongqing. The part of tooth health of the Index of Orthodontic Treatment Need (IOTN) was used to evaluate malocclusion. The aesthetic part of the IOTN was used to evaluate the subjective orthodontic treatment need. The Harter's Self-perception Profile for Children was used to evaluate the self-esteem. The data were analyzed with SPSS 20.0 software package. RESULTS: Subjective orthodontic treatment need IOTN-AC(moderate severe), overjet (severe: 6-9 mm, >9 mm), anterior crossbite, open bite, caries located in the anterior tooth area were negatively correlated with self-esteem(P<0.05). CONCLUSIONS： Subjective orthodontic treatment need and malocclusion, especially the types that have great influence on beauty obviously affect children's self-esteem. It is necessary to increase the investment and education of early orthodontic intervention.