铁门关市7～12岁儿童错颌畸形与口腔不良习惯的关系

Analysis of the relationship between malocclusion and oral habits among 7～12 year children in Tiemenguan City

(1)目的探讨铁门关市7～12岁儿童错颌畸形和口腔不良习惯的关系。(2)方法采用整群随机抽样方法,在铁门关市随机抽取233名7～12岁儿童进行错颌畸形和口腔不良习惯情况检查,并行相关性分析。(3)结果铁门关市7～12岁儿童错颌畸形率为63.52%,口腔不良习惯率为77.25%,口腔不良习惯是错颌畸形的危险因素[r=0.118,OR=1.904,P=0.00,95%CI(1.302,2.783)]。对刃颌与夜磨牙、深覆颌与口呼吸、颌前突与吐舌、锁颌与喂养或奶瓶使用不当相关,差异具有统计学意义(P <0.05)。(4)结论铁门关市7～12岁儿童错颌畸形和口腔不良习惯发生率比较高,口腔不良习惯与错颌畸形关系密切。

Objective To explore the relationship of malocclusion and improper oral habits of 7~12-year children in Tiemenguan City. Methods A stratified cluster sampling method was used on this investigation.233 children aged 7~12 year were randomly selected from the school in Tiemenguan City.The malocclusion and improper oral habits status of the children were examined. Results The rate of malocclusion was 63.52%.The rate of improper oral habits was 77.25%.Improper oral habits was the risk factor of malocclusion among the 7~12 year children in Tiemenguan City[ r= 0.118 ,OR= 1.904 ,P= 0.00 , 95%CI（1.302,2.783）].There was significantly correlation between these three pair of factors,negative overjet and sleep bruxism,deep overbite and mouth breathing,maxillary protrusion and tongue thrusting,locked occlusion and improper feeding habits（ P 〈 0.05 ）. Conclusion The incidences of malocclusion and improper oral habits of 7~12 year children in Tiemenguan City is relatively high.Improper oral habits and malocclusion are closely related.