Objective: The purpose of this study was to assess the effects of a novel manual therapy, the Cricothyroid visor maneuver (CVM) therapy, on acoustic, auditory perceptual and self-assessment ratings in Muscle tension dysphonia (MTD) patients.
Study Design: This was a retrospective study of 6 clinical cases.
Materials And Method: The study comprised 6 Persian speakers with MTD (2 men and 4 women) and mean age 38.