Sakaue K, Fukui T, Sasakura C, Hori K, Ono T, Saito I
Divisions of Orthodontics, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan.
Divisions of Comprehensive Prosthodontics, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan.
J Oral Rehabil. 2016 May;43(5):348-55. doi: 10.1111/joor.12379. Epub 2016 Jan 10.
Abnormalities of swallowing in patients with mandibular prognathism have not been evaluated quantitatively. The aim of this study was to compare tongue pressure production for bolus transfer between volunteers with normal occlusion and patients with mandibular prognathism. The control group had 10 female volunteers with normal occlusion, and the patient group had 10 women with mandibular prognathism. Tongue pressure was measured by a palatal sensor sheet at five sites on swallowing 4 mL of a tasteless and odourless jelly.
The tongue pressure waveform differed between the control and patient groups. The incidence of a double-peak tongue pressure waveform was more frequent in the patient group. In both groups, the exertion of tongue pressure began at the anterior point of the sensor sheet, followed by the peripheral parts. Although the order of expression of tongue pressure was the same for the two groups, maximum tongue pressure at all parts of the sensor sheet was lower in the patient group than in the control group. Furthermore, swallowing time was longer in the patient group than in the control group at the peripheral parts of the palate. These results clearly show the difference in tongue pressure production during swallowing between patients with mandibular prognathism and volunteers with normal occlusion. The current findings suggest that maxillofacial morphology may affect tongue movement during swallowing.
下颌前突患者吞咽异常尚未进行定量评估。本研究的目的是比较正常咬合志愿者与下颌前突患者在推送食团时的舌压产生情况。对照组有10名咬合正常的女性志愿者，患者组有10名下颌前突的女性。通过腭部传感片在吞咽4毫升无味无臭凝胶时的五个部位测量舌压。
对照组和患者组的舌压波形不同。患者组双峰舌压波形的发生率更高。在两组中，舌压的施加均始于传感片的前部，随后是周边部位。虽然两组舌压表达顺序相同，但患者组传感片各部位的最大舌压均低于对照组。此外，在腭部周边部位，患者组的吞咽时间比对照组更长。这些结果清楚地表明下颌前突患者与正常咬合志愿者在吞咽时舌压产生的差异。目前的研究结果表明，颌面形态可能会影响吞咽时的舌运动。
