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Maxillofacial Plastic and Reconstructive Surgery
Fig. 2 | Maxillofacial Plastic and Reconstructive Surgery

Fig. 2

From: Changes in the pharyngeal airway after different orthognathic procedures for correction of class III dysplasia

Fig. 2

A The distance between the posterior nasal spine (PNS) and the uvula (U) was considered the representative of the velopharynx segment. B The distance between the uvula and the epiglottis (E) was considered the representative of the oropharynx segment. C The distance between the epiglottis and the most anterior point of the fourth cervical vertebra (C4) was considered the representative of the hypopharynx segment. D The distance between the PNS and C4 was considered the representative of the total pharyngeal airway

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