Direct Voice Rehabilitation (DVR) does work. It has produced numerous documented cures, recoveries, and improvements with all types of SD for over 30 years. DVR helps patients with SD and other bad voice habits directly, simply, and naturally in a sequenced step-by-step procedure until a natural and healthy voice is developed, used, and integrated. DVR is neither speech therapy nor traditional voice therapy; DVR concentrates on specific variables of voice-pitch, tone focus, and breath support-using voice behavioral modification. In addition to these mechanical variables, a change of voice identity or "voice image" is the key psychological factor that helps the patient use the right voice.

Unlike the common view that SD is neurological and the treatment choices are "to cut or to inject," DVR is based on a different paradigm: SD is functional, actuated by unintentional voice misuse and abuse. SD is not a dystonia; it is a mechanical dysphonia.