Tongue muscle activity after orthodontic treatment of anterior open bite: a case report.

A case report of a Class I malocclusion with an anterior open bite and bimaxillary dental protrusion was presented. The patient had a tongue thrust swallow and slight lisping. After the treatment, significant adaptation in electromyographic pattern of genioglossus muscle activity during swallowing was determined. However, remarkable change in the electromyographic pattern of the genioglossus muscle did not occur during chewing.