Maxillomandibular Advancement (MMA) is a surgical treatment for Obstructive Sleep Apnea (OSA) that involves moving the upper (maxilla) and lower (mandible) jaws forward. This enlarges the airway behind the tongue and soft palate, significantly reducing airway collapse during sleep.

MMA is typically recommended for patients with moderate to severe OSA, especially when other treatments like CPAP or oral appliances have failed or when facial structure contributes to airway obstruction. It has one of the highest success rates among OSA surgeries and can lead to long-term improvement or even resolution of OSA in selected patients.