Effect of occlusive guidance device combined with muscle functional training on the correction of Angel's class Ⅱ malocclusion in the early childhood

摘要:

目的 探讨咬合诱导矫治器配合肌功能训练对早期儿童安氏Ⅱ类错畸形矫治的疗效影响。方法 选取2016年3月—2020年12月安顺市妇幼保健院收治的84例安氏Ⅱ类错患儿作为研究对象，并随机分为对照组、研究组，每组42例。对照组采用咬合诱导矫治器治疗，研究组在对照组基础上进行肌功能训练，治疗12个月后观察矫治疗效。结果 两组矫治前后上牙槽座角、下牙槽座角、上下牙槽座角、下颌平面角、面、眼耳平面相交下后角、上中切牙长轴与鼻根点-上牙槽座点连线交角、蝶鞍中心与颏顶连线与眼耳平面相交的下前角、上面高的差值比较，差异无统计学意义（P >0.05）。研究组矫治前后上中切牙长轴与SN平面相交的下内角、全面高、下面高、下中切牙长轴与下颌平面交角、下中切牙长轴与眶耳平面、覆盖、覆颌的差值高于对照组（P <0.05）。两组矫治前后关节上间隙、前间隙、后间隙及髁突高度、髁突内外径、髁突前后径的差值比较，差异无统计学意义（P >0.05）。结论 咬合诱导矫治器联合肌功能训练可增强早期安氏Ⅱ类错畸形患儿疗效，改善上下颌骨关系，减少覆盖。牙合牙合牙合

Abstract:

Objective To investigate the effect of occlusive guidance device combined with muscle functional training on the correction of Angel's class Ⅱ malocclusion in the early childhood.Methods The 84 children with Angel's class Ⅱ malocclusion who were treated in Anshun Maternal and Child Health Hospital from March 2016 to December 2020 were selected and divided into control and study groups, with 42 cases in each group. The control group was treated with occlusive guidance device, and the study group was additionally given muscle functional training. The therapeutic effect was observed after 1 year of the treatment.Results The differences of the SNA, SNB, ANB, MP-FH, FH-NPo, U1-NA, Y axis, and N-ANS before and after the treatment were comparable between the two groups (P >0.05). The differences of U1-SN, N-Me, ANS-Me, IMPA, FMIA, overjet and overbite before and after the treatment in the study group were higher than those in the control group (P < 0.05). The differences of superior joint space, anterior joint space, posterior joint space, the height of the condylar process, the mediolateral diameter of the condylar process, and the anteroposterior diameter of the condylar process before and after the treatment were not different between the two groups (P > 0.05).Conclusions The occlusive guidance device combined with muscle functional training can enhance the efficacy in the correction of Angel's class Ⅱ malocclusion, improve the maxillomandibular relationship, and reduce the overjet.