低氧环境对汉族安氏Ⅲ类伴上颌发育不足青少年患者上气道的影响

Effect of hypoxic environment on upper airway of adolescents with Angle Ⅲ malocclusion complicated with maxillary hypolasia in Han nationality

目的比较青藏高原与成都地区汉族安氏Ⅲ类伴上颌发育不足患者生长发育期的上气道总体积及最小截面积的差异。方法选择2013-2017年青海省人民医院因正畸治疗就诊的汉族安氏Ⅲ类青少年患者60例作为观察组,对照组为2015-2017年四川大学华西口腔医院因正畸治疗就诊的汉族安氏Ⅲ类成都市青少年患者60例,两组患者均在治疗前拍摄过锥形束CT(CBCT)。联合Invivo 5.0软件对两组患者进行上气道总体积及最小截面积进行测量。结果观察组患者的上气道总体积及最小截面积均小于对照组患者,差异有统计学意义(P<0.05)。结论高原地区低氧环境可能会影响安氏Ⅲ类青少年上气道总体积及悬雍垂瓶颈部的生长发育。

Objective To compare the differences in upper airway volume and minimum cross-sectional area of Han nationality adolescents who suffer from AngleⅢmalocclusion complicated with maxillary hypoplasia between the area of Qinghai-tibet plateau and Chengdu.Methods The study were subdivided into two groups.The experimental group consisted 60 patients(30 males and 30 females,aged 9-14)who had AngleⅢmalocclusion complicated with maxillary hypoplasia were selected from Qinghai People′s Hospital from 2013 to 2017.While the control group consisted 60 patients(30 males and 30 females,aged 9-14)who had AngleⅢmalocclusion with maxillary hypoplasia were selected from West China Hospital of Stomatology from 2015 to 2017.All the patients′original aim was to have orthodontic treatment and had been taken CBCT before that.Then,software INVIVO5.0 had been used to measure the volume and minimum cross-sectional area of upper airway.Results Both volume and minimum cross-sectional area of upper airway of the patients in the experimental group were less than in the control group.Conclusion The hypoxic environment in the plateau may affect the upper airway volume and the growth of neck of uvula.