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目的:了解成都地区替牙期咬合发育的情况,并研究引起咬合发育异常的相关危险因素。方法:按照分层随机抽样的原则抽取成都地区9个区9所小学的604名6~12岁儿童,对其咬合发育情况进行检查。结果:成都地区替牙期错畸形的患病率高达56.8%,吐舌、吮指、咬唇、咬物、口呼吸等口腔不良习惯同咬合发育异常有相关性(P<0.05),牙弓发育异常同咬合发育异常有相关性(P<0.05)。结论:成都地区替牙期儿童的错畸形的患病率较高,需进一步加强儿童咬合发育管理。
OBJECTIVE: To understand the development of occlusal occlusal occlusion during the period of occlusion in Chengdu and to study the related risk factors of abnormal occlusal development. Methods: According to the principle of stratified random sampling, 604 children from 6 to 12 years old from 9 primary schools in 9 districts of Chengdu area were selected for examination of occlusal development. Results: The prevalence rate of malformation deformity during dentition in Chengdu was as high as 56.8%. Depression, tongue sucking, bite lip, bite, mouth breathing and other bad oral habits were associated with abnormal bite development (P <0.05) Bow growth abnormalities associated with abnormal occlusal development (P <0.05). Conclusion: The prevalence of malformation deformity in children of dentition in Chengdu area is higher than that in other areas, and it is necessary to further strengthen the management of occlusion in children.