Objective: To evaluate the pharyngeal airway volume following treatment of skeletal Class II mandibular retrusion with miniplate-anchored Herbst appliance by Cone Beam Computed Tomography (CBCT). Materials and Methods:Fourteen female Class II post-pubertal patients with mandibular retrusion were randomly selected with mean age was 16.7±1.56years.As a first orthodontic phase, they were treated by t...