外耳道的一些形态学方面与下颌运动的关系。
Some morphological aspects of the meatus acusticus externus in connection with mandibular movements.
作者信息
Van Willigen J
出版信息
J Oral Rehabil. 1976 Jul;3(3):299-304. doi: 10.1111/j.1365-2842.1976.tb00955.x.
Abstract
A method is described to measure volumetric variations in the meatus acusticus externus caused by the movements of the mandible. Simultaneous registration of EMG activity and gnatho-sounds demonstrated that after tooth contact a slight decrease in volume, followed by some increase in volume takes place within 20-30 ms. The fast volume changes, during and after tooth contact, seem to be correlated to the speed of closure.
摘要
本文描述了一种测量下颌运动引起的外耳道容积变化的方法。肌电图活动和颌骨声音的同步记录表明，牙齿接触后，外耳道容积在20 - 30毫秒内先略有减小，随后有所增加。牙齿接触期间及之后的快速容积变化似乎与闭合速度相关。
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