[The electromyographic silent period of the mandibular elevators in variations of the vertical dimension of occlusion].
The duration of the electromyographic silent period of masseter and temporal muscles was measured on nineteen healthy subjects by global electromyography. Average values were established for each muscle examined indicating a S.P. of 36.5 ms on the masseter and 44.31 ms on the temporal muscles. Artificially increasing the vertical occlusal dimension changed the S.P. duration of the four elevator muscles of the mandible very significantly. However, the temporal muscle response which gave a more predictable reduction of the S.P. duration, was different from the response of the masseter which presented either an extension or a reduction of the S.P.
D003766:Dental Occlusion; D004576:Electromyography; D006801:Humans; D008410:Masticatory Muscles / Q000502:physiology*; D009119:Muscle Contraction; D011930:Reaction Time; D012018:Reflex / Q000502:physiology; D014716:Vertical Dimension
La période de silence électromyographique des élévateurs de la mandibule dans des variations de la dimension verticale d'occlusion.