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目的观察肥胖型儿童骨密度的变化、上气道形态的改变及了解肥胖型儿童饮食、睡眠和口腔疾病既往史。研究肥胖与安氏Ⅱ类错畸形发生的相关性。方法对895例11和12岁儿童进行体重指数(BMI)检查。BMI≥23为肥胖组(n=170);在剩余725例BMI<23的儿童中,随机抽取170例作为配对正常组,对两组儿童进行骨密度检查和统计上气道软、硬组织形态的相关参数。并通过问卷调查了解儿童饮食睡眠和口腔疾病既往史。结果肥胖组骨量减少,上气道相对狭窄,口呼吸习惯及牙体早失几率较高。结论肥胖虽然不是安氏Ⅱ类错畸形发生的直接原因,但与安氏Ⅱ类错畸形发生存在间接相关性。
Objective To observe the changes of bone mineral density (BMD), changes of upper airway morphology in obese children and to understand the past history of diet, sleep and oral diseases in obese children. To study the correlation between obesity and Class Ⅱ malocclusion. Methods Body mass index (BMI) was examined in 895 children aged 11 and 12 years. BMI≥23 was obese (n = 170). Of the remaining 725 children with a BMI of <23, 170 children were randomly selected as the matched normal group. BMD and statistic upper airway soft and hard tissue morphology Related parameters. And through the questionnaire to understand the history of childhood eating and sleeping disorders and oral diseases. Results In the obesity group, the bone mass was decreased, the upper airway was relatively narrow, the oral breathing habits and the premature tooth loss rate were higher. Conclusion Although obesity is not the direct cause of Class Ⅱ malocclusion, it has an indirect correlation with Class Ⅱ malocclusion.