Electromyographic investigations of the tongue and circumoral muscular sling with fine-wire electrodes.
The electromyographic (EMG) examination of 11 normal individuals in whom bipolar fine-wire indwelling electrodes were placed showed no EMG activity during rest periods and only very slight to slight activity during normal oral functionsmduring aberrant oral activity, such as thumb-sucking, the orbicularis oris and genioglossus muscles gave a marked EMG response and the buccinator muscles were slightly active. These findings may help explain the classical malocclusions seen in tongue-thrusters and thumb-suckers.
D000328:Adult; D004576:Electromyography; D004594:Electrophysiology; D005260:Female; D005386:Fingersucking / Q000503:physiopathology; D006801:Humans; D008297:Male; D008410:Masticatory Muscles / Q000502:physiology; D008875:Middle Aged; D009055:Mouth / Q000502:physiology*; D009132:Muscles / Q000502:physiology; D014059:Tongue / Q000502:physiology*