Jemt T, Karlsson S, Hedegård B
J Prosthet Dent. 1979 Dec;42(6):669-73. doi: 10.1016/0022-3913(79)90199-9.
Mandibular chewing movements of 10 young adults were registered with LED. The registrations were performed manually, and the following observations were made: 1. The mean cycle duration was reduced from 1.12 seconds for cycle 1 to 0.76 second for cycle 16. 2. The duration of the opening phase appeared to be shorter than that of the closing phase. 3. The maximal vertical movement of the mandible decreased throughout the chewing period. The results obtained in this study agree with those reported by other investigators and indicate that a system using LED is suitable for analyzing the mandibular movement pattern in clinical situations.
使用发光二极管（LED）记录了10名年轻成年人的下颌咀嚼运动。记录是手动进行的，并得出以下观察结果：1. 平均周期时长从第1个周期的1.12秒减少到第16个周期的0.76秒。2. 开口期的时长似乎比闭口期短。3. 在整个咀嚼期，下颌的最大垂直移动距离减小。本研究获得的结果与其他研究者报告的结果一致，表明使用发光二极管的系统适用于分析临床情况下的下颌运动模式。
