Atkinson H F
Aust Dent J. 1976 Feb;21(1):23-9. doi: 10.1111/j.1834-7819.1976.tb04413.x.
An electronic method of recording displacement was used to study mandibular movement during mastication. The technique enables the parameters of muscle activity, the sound of tooth contact, the force developed between opposing teeth, and the displacement of the mandible to be recorded at the same time on a single U/V chart. Previous reports on mandibular movement using cine-photographic techniques were confirmed in relation to mastication, but additional information was obtained in relation to muscle activity in the final closing movements. It appears that tooth contact initiates a latent-silent period in masseter and temporalis which occurs before movement is arrested in the final intercuspal position. It is considered that the kinetic energy of the mandible on closing is reduced by the cessation of activity in these two muscles during the silent period and finally absorbed by the crushing of food during the terminal intercuspal slide to rest. A description of mastication is given and a theory advanced that this may be controlled by a central clock mechanism.
采用一种记录位移的电子方法来研究咀嚼过程中的下颌运动。该技术能在同一张U/V图表上同时记录肌肉活动参数、牙齿接触声音、相对牙齿间产生的力以及下颌的位移。以往关于使用电影摄影技术研究下颌运动的报告在咀嚼方面得到了证实，但在最终闭合运动的肌肉活动方面获得了额外信息。似乎牙齿接触会引发咬肌和颞肌的潜伏期无声期，该时期发生在最终牙尖交错位运动停止之前。据认为，下颌闭合时的动能在无声期因这两块肌肉活动停止而降低，最终在牙尖交错位最终滑动至静止时通过食物碾碎而被吸收。给出了咀嚼的描述，并提出一种理论，即咀嚼可能由中央时钟机制控制。
