Faulkner K D, Atkinson H F
J Oral Rehabil. 1983 May;10(3):257-67. doi: 10.1111/j.1365-2842.1983.tb00119.x.
A closed circuit television movement detector was used to study mandibular movement in the form of tooth tapping, in subjects with no apparent dental disease or malocclusion. The velocity and form of various phases of movement was studied, in the transverse, sagittal and coronal planes, from measurements made on u.v. charts and X-Y recordings. It was shown that closing movements were more direct and faster than opening movements; that initial contact on closing is in a well-defined contact area, followed by a sliding of cusps over each other to a final centric position and that the closing path of the mandible in tapping movements is in the form of a smooth curve showing simple axis rotation through distances normally greater than those accepted clinically. It was also shown that microphone signals can be detected at times other than when normally expected, indicating displacement with tooth contact, at times other than at the fully intercuspated position.
使用闭路电视运动探测器,对无明显牙病或错牙合畸形的受试者以叩齿形式进行下颌运动研究。通过对紫外线图表和X - Y记录的测量,研究了运动各阶段在横向、矢状面和冠状面的速度和形式。结果表明,闭口运动比开口运动更直接、更快;闭口时的初始接触发生在一个明确的接触区域,随后牙尖相互滑动至最终的正中位置,并且叩齿运动中下颌的闭口路径呈平滑曲线形式,显示出简单的轴旋转,旋转距离通常大于临床公认的距离。还表明,除了正常预期的时间外,有时也能检测到麦克风信号,这表明在除完全牙尖交错位之外的其他时间,牙齿接触时会发生位移。