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Three dimensional Cone Beam Computed Tomography Study of Pharyngeal Airway Dimensions in Different Anteroposterior Skeletal Classification Patients

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Technical Report

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Uniformed Services University of the Health Sciences Lackland AFB United States

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Our objective was to determine whether the airways of Class I and II patients differ in size. Methods 100 pretreatment CBCT images were randomly selected, divided into Class I and II groups, and lateral ceph images were sectioned from the CBCTs. Using the Dolphin airway tool all the airways were measured at two thresholds. Results There was no statistical difference between the airway volume, sagittal area or minimal cross sectional area between the Class I group and the Class II group p0.05. There was a large variation in airway sizes. The airway areas of high angle Class II patients were significantly smaller than the Class I group p0.045. Conclusions Airway sizes are highly variable and do not differ between CIass I and II patients, except for high angle Class II patients who have smaller airways than Class I.

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  • Medicine and Medical Research

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