A Clinical Study on Influence of Palatal Abnormal Sensation on Speech in Cleft Plate Patients

在腭裂修复术中，腭大神经组织可通过腭瓣的分离得到手术干预。此外，由于腭瓣的推回操作，手术过程中或多或少地暴露了骨头，因此我们猜测腭粘膜受到了一定的感觉障碍。本研究的目的是阐明腭裂手术后腭部异常感觉如何影响言语。本文对16例腭裂患者和7例正常人的硬腭前部、前磨牙牙槽区和软腭前部3个点的腭感觉进行了研究，并对触觉阈和振动阈进行了测定。使用Pressure Aesthesio Meter（SW sense-tester，Research Design Inc.）用SMV-5型振动仪测定振动觉阈值。结果如下：1.结果：1.腭裂患者和对照组硬腭前区的感觉均较软腭前区和前磨牙牙槽区的感觉迟钝.腭裂患者的触觉较对照组有变钝的趋势，尤其是前磨牙牙槽区的触觉更明显。腭裂患者振动感觉阈值与正常对照组无明显差异.腭裂患者触觉和振动觉阈值的定量数据之间无相关性。而对照组则呈高度正相关。

A great palatine nerve tissue might be received some surgical intervention by dissection procedure from palatal flaps during primary cleft palate repair. In addition, the bone were exposed more or less during operation due to push back procedure of palatal flaps.Therefore, we guessed that palatal mucosa were suffered from some sensory disturbance.The purpose of this study was to clarify how palatal abnormal sensation after cleft palate surgery influences on speech. We investigated the palatal sensation at 3 points on the palatal mucosa ; the anterior region of hard palate, the premolar alveolar region and the anterior region of the soft palate of 16 cleft palate patients and 7 controls, especially we did about the touch sensory threshold and the vibratory sensory threshold. The touch sensory threshold was measured using Pressure Aesthesio Meter (SW sense-tester, Research Design Inc.) and the vibratory sensory threshold was measured by the vibrometer (model SMV-5). The results were as follows :1. A sensation of the anterior region of the hard palate was duller than that of the anterior region of soft palate or that of premolar alveolar region in both cleft palate patients and controls.2. Generally, touch sensation of cleft palate patients tended to duller than that of controls, especially it clearly observed at the premolar alveolar region. However, the vibratory sensory threshold of cleft palate patients were not clearly different from that of controls.3. There was not correlation between the quantitative data of touch sensory and vibratory sensory threshold in cleft palate patients. Though, there were high positive correlations in controls.