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Fig. 1 | Maxillofacial Plastic and Reconstructive Surgery

Fig. 1

From: Retrospective study of changes in pharyngeal airway space and position of hyoid bone after mandibular setback surgery by cephalometric analysis

Fig. 1

Reference landmarks and lines of the study. a Lateral cephalography. b Landmarks in analysis of pharyngeal airway space, movement of mandible, and position of hyoid bone. Po Porion, point located at the most superior point of the external auditory meatus; Or Orbitale, the lowest point in the inferior margin of the orbit; Pog Pogonion, the most anterior point on the contour of the symphysis; PSP, the most posterior point of the soft palate; PTO, point crossing mandibular inferior border in posterior area of the tongue; E, the most superior point of epiglottis; H, the most anterosuperior point of hyoid bone; FHL; PRL, line perpendicular to FHL passing Po

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