Complex sentence: Maxillomandibular Advancement (MMA) or orthognathic surgery, also sometimes called Bimaxillary Advancement (Bi-Max), or Maxillomandibular Osteotomy (MMO), is a surgical procedure which moves the jaw top (maxilla) and bottom (mandible) forward.
Split into simpler sentences: Maxillomandibular Advancement (MMA) or orthognathic surgery, also sometimes called Bimaxillary Advancement (Bi-Max), or Maxillomandibular Osteotomy (MMO). A surgical procedure which moves the jaw top (maxilla) and bottom (mandible) forward.