王素梅 时晨

    [摘要]目的：探討FRⅢ型矫治器对混合牙列期咬合不正儿童的矫正效果及CBCT咬合参数的影响。方法：选取笔者医院2019年5月-2021年6月收治的56例混合牙列期咬合不正患儿作为研究对象，采用FRⅢ型矫治器进行矫正，采用CBCT测定患儿治疗前后硬组织、软组织、牙性指标差异及矫正效果。结果：患儿治疗后的SNA、SN-MP、ANB、NA-Apo、Go-Pg、wits均高于治疗前(P<0.05)，OP-SN值均低于治疗前(P<0.05)，SNB、Y轴角、S-Go/N-Me治疗前后差异无统计学意义(P>0.05)；患儿治疗后的UL-EP、H角均高于治疗前(P<0.05)，LL-EP低于治疗前(P<0.05)，NLA治疗前后差异无统计学意义(P>0.05)；患儿治疗后的U1-SN、U1-NA、覆盖均高于治疗前(P<0.05)，IMPA、覆牙合低于治疗前(P<0.05)，L1-NB治疗前后差异无统计学意义(P>0.05)；矫正有效率为91.07%。结论：采用FRⅢ型矫治器对混合牙列期咬合不正患儿矫正效果较好，能够提高侧面容貌美观度，恢复口腔和正常咬合功能。

    [关键词]FRⅢ型矫治器；混合牙列期；咬合不正；儿童；锥形束CT

    [中图分类号]R783.5? ? [文献标志码]A? ? [文章编号]1008-6455(2023)08-0118-04

    The Effect of FRⅢ Appliance on Children with Mixed Dentition Malocclusion and Its Influence on CBCT Occlusal Parameters

    WANG Sumei，SHI Chen

    (Department of Stomatology，Baoding Hospital，Beijing Children's Hospital，Capital Medical University，Baoding 071000，Hebei，China)

    Abstract： Objective? To investigate the effect of FRⅢ appliance on children with mixed dentition malocclusion and its influence on CBCT occlusal parameters. Methods? 56 children with malocclusion in mixed dentition from January 2020 to January 2022 were selected as the study subjects. FRⅢ appliance was used for correction ......