MAXFACS offers Maxillomandibular Advancement (MMA) surgery, performed by Oral and Maxillofacial Surgeon, Dr. Stephen Ho. Dr. Ho is a member of the AADSM and has graduate medical training in adult and pediatric sleep science. This procedure is appropriate for individuals with severe OSA who cannot tolerate or are unsuitable candidates for positive airway pressure therapy. This surgery has a greater than 90% chance of curing OSA by enlarging the entire upper airway.