用外科手术的方法前移整个上颌骨以矫治先天性或获得性上颌骨发育不全或后缩已较为普遍。容貌的改善和咀嚼功能的改进是明显的。但是,做为上颌骨整个前移的结果,腭咽区解剖——形态——功能关系也会随之改变,这在早期未能引起人们足够的关注。由于硬腭是个板形骨,软腭的某些肌肉附着于其上,手术使硬腭向前移位可能会增加鼻咽腔距离,从而导致在腭咽闭合运动中软腭运动距离的增加。一、非腭裂患者的上颌骨前移: 一般认为非腭裂患者的腭咽闭合功能不受上颌骨整体前移手术的影响。Jabaley和 Surgical approach to move the entire maxilla to correct congenital or acquired maxillary hypoplasia or contraction has been more common. The improvement of appearance and the improvement of masticatory function are obvious. However, as a result of the entire maxillary advancement, the anatomic-morphological-functional relationship of the palatopharyngeal area also changes, which failed to attract enough attention in the early stage. Since the hard palate is a plate-shaped bone to which certain muscles of the soft palate are attached, surgery to displace the palate forward may increase nasopharyngeal cavity distance, resulting in an increase in the distance of movement of the soft palate during velopharyngeal closure. First, non-cleft palate patients with maxillary advance: It is generally believed that the non-palate patients with velopharyngeal closure function is not affected by the overall advancement of the maxillary. Jabaley and