探讨腭裂患者语音的病理生理变化以及引起这种变化的因素 ,从而努力消除这些因素 ,建立正常的语音及发声系统是腭裂序列治疗中重要的组成部分。腭裂患者语音系统异常主要表现在腭咽闭合、舌位和舌腭接触、声门及咽腔代偿性发音等异常。其他如颌骨发育、牙列紊乱、牙槽嵴裂、腭 To explore the pathophysiological changes of speech in patients with cleft palate and the factors that cause such changes in an effort to eliminate these factors and to establish a normal speech and vocal system is an important part of the treatment of cleft palate sequence. Cleft palate patients with abnormal voice system is mainly manifested in the velopharyngeal closure, tongue and palate contact, glottis and pharyngeal compensatory abnormalities such as pronunciation. Others such as jaw development, dentition disorders, alveolar cleft, palate