Cephalometric evaluation of upper airway in healthy adult population: A preliminary study

Objective: To obtain normative cephalometric data of upper airway in normal adult population. Materials and Methods: Study included 60 healthy subjects, 30 males and 30 females with age range of 18-40 years with normal skeletal profile, no history of sleep-related disorders, obesity. The cephalometric parameters assessed included airway measurements like size of the tongue, soft palate, dimensions of naso, oro, hypopharynx, and relative positions of hyoid bone and vellaculae. Statistical Analysis: Paired t-test was used T-value <0.05 was considered to be significant. Results: Significant sex dimorphisms were observed in most of the parameters with the exception of upper airway width and length of soft palate. Conclusions: The data provides preliminary details of upper airway assessment in normal individuals. Further correlations can be drawn with the studies comparing airway dimensions in normal individuals and in subjects with sleep-related disorders.