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头影测量的应用日趋普遍,但是,对于腭咽部X线解剖结构的测量研究文献报道不多.本文对88名正常人,17名Ⅲ度腭裂修补术后病人及10名先天性上颌骨发育不全安氏Ⅲ类错(牙合)病人的头颅侧位片上腭咽部X线解剖测量结果进行比较分析,发现三组的SN—PNS和ANS—PNS—u角之间无显著差异;腭裂组软腭长度明显减小,而其余两组间无明显差异;腭裂组与正常人组的咽深度无显著差异,而非腭裂组病人的咽深度则明显小于其他两组。因此在腭裂术后病人腭咽闭合功能不佳的情况下,采用整个上颌骨前移来矫治上颌骨发育不全是不恰当的,应考虑选用上颌骨前份截骨术.
However, there are few reports on the anatomical structures of velopharyngeal X-ray.There are 88 normal subjects, 17 patients with Ⅲ degree palate repair and 10 congenital maxillary development There was no significant difference between SN-PNS and ANS-PNS-u angles in the three groups of patients with acute Angle Ⅲ malocclusion. The cleft palate group The length of soft palate decreased significantly, while the other two groups had no significant difference. There was no significant difference in pharyngeal depth between cleft palate group and normal group, but non-cleft palate group's pharynx depth was significantly lower than the other two groups. Therefore, after palatoplasty in patients with velopharyngeal closure dysfunction, the use of the entire maxillary advancement to correct maxillary hypoplasia is not appropriate, we should consider the use of the maxillary anterior osteotomy.