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-  2016 

上颌交替式快速扩缩后气道的二维和三维变化 2-D and 3-D Evaluation of Upper Airway Changes After Maxillary Expansion with the Alt-RAMEC Protocol

Keywords: 交替式扩缩,Ⅲ类错,气道

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Abstract:

目的:利用头影测量和CBCT三维重建评估上颌快速扩缩后气道变化。方法:选择上颌发育不足的Ⅲ类儿童43例(男20,女23)。患者扩弓矫治器,并按要求扩缩6周。扩缩前后分别拍摄CBCT和头颅侧位片并进行测量分析,所有结果通过配对t检验和Meta回归进行数据分析。结果:上颌扩缩后,SNA、ANS-TVL、PNS-AD1、AD2-PNS、鼻咽腔直径和PNS-Ba长度改变较为明显(P<0.001),Ba-AD1和Ptm-Ba扩弓前后没有明显变化,腭咽和舌咽体积均有明显增大(P<0.005)。HP、SP和SCV平面的横截面积也明显增大(P<0.005),HP平面上气道横截面积和ANS-TVL长度有相关性(r2=0.78).结论:上颌交替式快速扩缩可促进上颌骨向前发育,增加气道容积,明显改善上颌发育不足的Ⅲ类错畸形患儿的通气状况

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