Figure 1a

Figure 1a: Lateral cephalometric radiograph of a patient with obstructive sleep apnea syndrome (OSAS) indicates the narrow anteroposterior dimension of the pharyngeal airway at the level of the soft palate and the base of tongue (arrows).

Figure 1b

Figure 1b: Postoperative lateral cephalometric radiograph of the same patient after maxillo- mandibular advancement. Note the signicant increase in the pharyngeal airway space at the level of the soft palate and the base of tongue.

Figure 2

Figure 2: Preoperative photograph of the patient depicted in Figure 1.Patients without a clinically obvious facial deformity may benefit  from maxillomandibular advancement. As this photograph indicates, patients with OSAS may not be obese.

Figure 3

Figure 3: Lateral cephalometric radiograph of a patient with OSAS  who underwent uvulopalato- pharyngoplasty demonstrates a thick, bulbous soft palate (arrow) associated with a narrow naso- pharyngeal airway.

Figure 4

Figure 4a: Preoperative photograph of a patient with OSAS.

Figure 4b

Figure 4b: Postoperative photograph of the same patient 6 months after maxillomandibular advancement.

Figure 4c

Figure 4c: Preoperative lateral cephalometric radiograph of the same

Figure 4d

Figure 4d: Lateral cephalometric radiograph of the same patient after maxillomandibular advancement shows signi cant improvement in the pharyngeal airway space.