The use of electroglottography in the treatment of deaf adolescents with puberphonia.

Electroglottography (EGG) was used as a visual feedback tool in the treatment of four male profoundly deaf adolescents of 15 years of age with puberphonia. A laryngograph, oscilloscope, computer, and laryngostroboscope were used for this research. The EGG was used during phonopedic exercises, which consisted of the patient producing voiced coughing in modal register and extended these into prolonged vowels. The investigation showed that EGG facilitated the production of vocal fold vibration in the modal register. It was concluded that EGG was highly effective in changing the production of vocal register and could be recommended in the treatment of puberphonia in the deaf.