Howell P, Williams M
Department of Psychology, University College London, England.
Scand Audiol. 1989;18(4):231-6. doi: 10.3109/01050398909042200.
Relative movement between the mandible and skull may compress the auditory meatus and produce an excess sound in the ear canal. To test this, measurements of sound pressure in the ear canal, and movement of the upper and lower jaw are reported on normal subjects and a unilateral hemi-mandibulectomee. On the side the unilateral hemi-mandibulectomee has a jaw and in the subjects with normal jaws, the data confirm that mandible-movement relative to the skull produces sound in the ear canal. The excess sound in the ear canal when the jaw is free to move independently of the skull can be predicted from the relative movement between them.
下颌骨与颅骨之间的相对运动可能会压迫外耳道并在耳道内产生额外声音。为了对此进行测试，报告了对正常受试者和单侧半侧下颌骨切除术患者耳道内声压以及上下颌运动的测量结果。在单侧半侧下颌骨切除术患者有下颌骨的一侧以及颌骨正常的受试者中，数据证实下颌骨相对于颅骨的运动在耳道内产生了声音。当颌骨可独立于颅骨自由移动时，耳道内的额外声音可根据它们之间的相对运动来预测。
