Haapanen M L, Heliövaara A, Ranta R
Department of Plastic Surgery, Cleft Centre, Helsinki, Finland.
J Craniomaxillofac Surg. 1991 Feb;19(2):77-80. doi: 10.1016/s1010-5182(05)80611-0.
In the present study cephalometric measurements reflecting the nasopharyngeal space were traced on lateral cephalometric X-rays in 59 young adults with an isolated cleft palate. The distribution of the measurements AD1-PNS, AD2-PNS, AD1-BA, AD2-SO and PNS-BA and the magnitude of the hypernasality were analyzed with the ANOVA procedure and Duncan's multiple range test. The degree of hypernasality was assessed in terms of the hypernasality index. The results showed that AD1-PNS and AD2-PNS measurements were significantly related to the hypernasality index at the risk level of 0.03 and 0.05 per cent, respectively. The patients with the shortest sagittal depth of the nasopharynx had normal resonance in their speech, while the patients with the longest measurements demonstrated hypernasality. The thickness of the posterior pharyngeal wall in terms of AD2-SO was not clearly significant for speech, although the patients with the longest measurements tended to speak without hypernasal resonance. The other cephalometric measurements, i.e. AD1-BA and PNS-BA were not significantly related to the occurrence of hypernasality. It was concluded that the cephalometric measurements reflecting nasopharyngeal space are correlated with the occurrence of hypernasality, but the relationship is by no means simple and linear, and therefore it requires further study.
在本研究中，对59例单纯腭裂青年成人的头颅侧位X线片进行测量，以反映鼻咽腔空间。采用方差分析和邓肯多重极差检验分析测量值AD1-PNS、AD2-PNS、AD1-BA、AD2-SO和PNS-BA的分布以及鼻音过重的程度。鼻音过重的程度根据鼻音过重指数进行评估。结果显示，AD1-PNS和AD2-PNS测量值分别在0.03%和0.05%的风险水平上与鼻音过重指数显著相关。鼻咽矢状深度最短的患者语音共鸣正常，而测量值最长的患者表现为鼻音过重。尽管测量值最长的患者往往说话时没有鼻音过重的共鸣，但就AD2-SO而言，咽后壁厚度对语音的影响并不明显。其他头颅测量值，即AD1-BA和PNS-BA与鼻音过重的发生没有显著关系。得出的结论是，反映鼻咽腔空间的头颅测量值与鼻音过重的发生相关，但这种关系绝非简单的线性关系，因此需要进一步研究。
