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目的:探讨分析对儿童乳牙反颌采用颌垫式活动矫治器矫治的临床疗效。方法:选取2013年5月至2014年5月在本院矫治的48例3~5周岁乳牙反颌患儿,进行分组治疗,观察组24例患儿采用导弓式可摘矫治器矫治,治疗组24例采用颌垫式活动矫治器矫治,治疗3周~3个月,观察两组患者临床治疗效果,及采用X线投影测量患儿SNB角、ANB角、U1-NA角和L1-NB变化情况和软组织改善情况,并进行统计学分析;结果:所有患儿在3个月内恢复情况较好,效果明显,上下颌骨覆盖完整。治疗者治愈效果与观察组结果差异不显著(P>0.05);X线测定结果显示,组内SNA角和ANB角显著增大(P<0.05),SNB角减小(P<0.05),U1-NA与L1-NB角增大显著(P<0.05),但两组间差异无统计学意义(P>0.05);结论:颌垫式活动矫治器,能有效矫治儿童乳牙反颌,矫治时间短,临床效果明显,可作为临床矫治乳牙方法的方法。
Objective: To analyze and analyze the clinical effect of mandibular paddle active appliances on the deciduous teeth of children. Methods: From May 2013 to May 2014 in our hospital, 48 cases of 3 to 5-year-old deciduous teeth anti-mandibular children were treated by grouping, 24 cases in the observation group were treated with guide bow abduction appliance The patients in the 24 cases were treated with maxillofacial activity appliance and were treated for 3 weeks to 3 months. The clinical effects and the SNB angle, ANB angle, U1-NA angle and L1-NB Changes and soft tissue improvement, and statistical analysis; Results: All children recover within 3 months better, the effect is obvious, the upper and lower jaws covered completely. The results of X-ray showed that the SNA angle and ANB angle were significantly increased (P <0.05), SNB angle was decreased (P <0.05), U1 -NA and L1-NB angle increased significantly (P <0.05), but there was no significant difference between the two groups (P> 0.05) .Conclusion: The jaw pad type active appliance can effectively correct the decidua Short, clinical effect is obvious, can be used as a method of clinically correct deciduous teeth.