[摘 要]目的 探讨在口呼吸儿童正畸治疗期间实施口唇肌功能训练对其牙颌面发育的影响。方法 选取2022年1月-2023年7月我院收治的56例口呼吸患儿，随机分为对照组和观察组，每组28例。对照组仅给予常规正畸治疗，观察组在对照组的基础上于术后3个月进行系统的口唇肌功能锻炼，比较两组牙性头影测量指标、面部角度测量指标、满意度。结果 观察组U1-SN指标和L1-MP指标优于对照组(P<0.05)；两组OP-FH指标比较，差异无统计学意义(P>0.05)；观察组治疗后鼻唇角、颏唇角、颏颈角及面型角均优于对照组(P<0.05)；观察组满意度为96.43%，高于对照组的71.43%(P<0.05)。结论 口唇肌功能训练能有效改善儿童口腔颌面部的发育，在U1-SN和L1-MP等牙性头影指标及鼻唇角、颏唇角及面型角等方面均显示出良好的改善作用，且满意度高，具有较高的临床应用价值。

    [关键词] 口呼吸儿童；正畸治疗；口唇肌功能训练；牙颌面发育

    [中图分类号] R783.5 [文献标识码] A [文章编号] 1004-4949(2024)24-0001-04

    Effect of Orbicularis Oris Muscle Function Training on Dento-maxillofacial Development in Mouth Breathing Children Undergoing Orthodontics

    LI Jing

    (Department of Stomatology， Qinhuangdao Haigang Hospital， Qinhuangdao 066000， Hebei， China)

    [Abstract]Objective To investigate the effect of orbicularis oris muscle function training on dento-maxillofacial development in mouth breathing children during orthodontics period. Methods A total of 56 children with mouth breathing admitted to our hospital from January 2022 to July 2023 were selected and randomly divided into control group and observation group ......