![]() ![]() These steps have the potential to introduce a level of subjectivity and negatively affect reliability of the airway analysis. While contemporary software programs offer semi-automated quantitative assessment of the airway, the examiner must initially process the DICOM file through several steps including image orientation and selection of threshold sensitivity before measurements are made. However, before CBCT is employed to quantitatively assess the airway, it is crucial that we establish its reliability as a measurement tool. More specifically, the ability to perform a three-dimensional evaluation of the upper airway coupled with the lower radiation dose compared to medical CT imaging makes CBCT a potentially attractive tool for the assessment of airway anatomy in OSA patients ( 2). The field of orthodontics is no exception and the relatively recent and increased awareness in obstructive sleep apnea (OSA) in children and adults has driven the assessment of the upper pharyngeal airway using CBCT to the forefront of academic and clinical interest. Since then interest in it has rapidly increased in dental research and clinical practice among general dentists and specialists alike ( 1). ![]() ![]() Dental radiography was revolutionized when cone beam computed tomography (CBCT) became readily available in the late 1990’s. ![]()
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