Fig. 3From: Efficacy and mechanism of mandibular advancement devices for persistent sleep apnea after surgery: a prospective studyCT scan of responders under the condition of sleep apnea. Without OA in place: nasopharynx (a), velopharynx (b), glossopharynx (c), epiglotopharynx (d). With OA in place: nasopharynx (e), velopharynx (f), glossopharynx (g), epiglotopharynx (h)Back to article page