السيفالومترية الطبيعية للمجاري التنفسية العلوية عند البالغين السوريين

Abstract EN

Background & Objective: Cephalometric evaluation of the upper air ways to obtain normative measurements of the upper airway in the Syrians healthy adults.

Material & Method: Subjects included 70 healthy patients, (age range, 22-24 years) with permanent occlusion on all teeth, class 1 on first 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.

Results: The normal measurement of the upper airways on the cephalometric radiographs were: the width of oropharyngeal(29.76 mm,oropharyngeal(11.95 mm),laryngopharyngeal(19.71 mm),vertical pharyngeal length(70.86 mm),thickness of soft palate(9.11 mm),length of soft palate(37.91 mm),relative position of the hyoid bone(AA-Hy(66.66 mm))-(Hy-RGN(43.19 mm))-(ANS-Hy(92.60 mm)), C3-HY-RGN angle(160.54ْ),length of tongue(77.99 mm),total length of tongue(82.24 mm),height of tongue(34.32 mm).

Conclusion: Findings from this study should be useful references for the assessment of sleep apnoea in the local population