Objectives:(1) To test the null hypothesis that there are no significant difference in the
pharyngeal airway in subjects with Class I malocclusion with different growth patterns.(2) To
test the null hypothesis that there are no significant difference in dentofacial structure in
subjects with Class I malocclusion with different growth patterns. Materials and Methods:
Lateral cephalometric radiographs of 120 skeletally Class I were separated into three
groups according to the SN-MP angle. Lateral cephalometric radiographs of 39 low angle …