[Electromyographic studies of the oral region before and after treatment with the function regulator]

Electromyographic measurements of the activity of the lips were performed on 101 children with dental malocclusions. It was stated that the intensity of the tetanic activities depended on the type of malocclusion. On mouth closing the lower lip was in general more active than the upper lip. Electromyographic examinations before and after treatment with the function regulator showed a considerable decrease in muscular activity compared to the initial values. These results permit to conclude that the function regulator as a training tool in the oral vestibule exerts a beneficial effect on incorrect positions and parafunctions of the muscles of the lips.