This bioactivity can stimulate fibroblasts to remodel and can result in repair of the defect. Collagen's main limitation is that it is resorbed in an unpredictable fashion. Teflon lasts longer in the body than fat or gelfoam and is usually used to permanently repair vocal fold defects. Voice therapy is useful when the vocal folds can almost close. Therapy techniques are designed to improve voice quality, increase loudness, and lessen the feeling of running out of air when talking.
Several options exist for the treatment of bilateral vocal fold motion impairment.
All of these treatments seek to improve breathing. They have different effects on the balance between breathing, voice quality, and airway protection during swallowing. A transverse cordotomy is another option and involves removing a small portion of the vocal fold from one or both sides. Newer procedures for dealing with bilateral vocal fold motion impairment have recently emerged. One of these, a posterior cricoid split, involves splitting the cricoid cartilage and inserting a cartilage graft.