Discussion
malocclusion, retrognathic mandible
According to literature, there is a reduction in pharyngeal airway dimensions in patients with skeletal Class II malocclusion and retrognathic mandible [Thus, in the current study Skeletal class II patients with ANB angle greater than 4° and SNB angle less than 78° were given functional appliances in an attempt to improve their pharyngeal airway dimensions. Children chosen for this study were between the ages of 9 and 12 years, since previous researches have shown that the myofunctional appliances are most effective during the prepubertal stage of rapid growth [Although lateral cephalograms are not ideal for airway analysis, it was employed in this work due to its lower radiation dosage, availability and cost effectiveness [When assessing pharyngeal airway parameters, most researches have exclusively used linear metrics [