Cephalometric evaluation of the upper air ways to obtain normative
measurements of the upper airway in the Syrians healthy adults.
Subjects included 70 healthy patients,
(age range, 22-24 years) with permanent occlusion on all teeth, class 1 on fi
rst molars and canines,normal
overjet(2-3 mm) and normal overbite(not more than 1\3 buccal surface of the lower central incisor), no
spaces or crowding teeth,Syrian nationality,no prior orthodontic treatment and with no functional
disorders. Thirteen cephalometric airway measurements:the width of nasopharynx, oropharynx,
hypopharynx, vertical pharyngeal length, thickness and length of the soft palate ,relative position of the
hyoid bone, and length and hieght of the tongue, were obtained.
