This is NOT a post about mixed martial arts. MMA in this post refers to maxillo-mandibular advancement. This is a surgical procedure of bring the upper jaw (maxilla) and the lower jaw (mandible) into a more forward position so as to open up the airway for breathing. Just as cosmetic jaw surgery is known as orthognathic surgery, “ortho” referring to “straightening” and “gnathic” meaning “jaws”, MMA is sometimes referred to as telegnathic surgery, with “tele” meaning “advancing”. Obstructive sleep apnea is a condition whereby breathing is blocked during sleep due to some anatomical structures obstructing the flow of air from the nose or mouth into the lungs. So, how does MMA solve the problem of OSA.