Bilateral Sagittal Split Osteotomy (BSSO) is a surgical procedure that cuts and separates the lower jaw (Mandible) into three pieces. It is performed in a hospital or surgical center, under general anesthesia, by an Oral Maxillofacial Surgeon. This type of surgery is usually done in cases where the lower jaw needs to be lengthened, shortened, or moved into a more beneficial position. Your Orthodontist will consult with your Oral Maxillofacial Surgeon to determine the new position and a treatment plan. Once the lower jaw is placed in its new position, it is secured in place with tiny titanium plate is and screws, which are left in permanently. The jawbones heal and fuse together again within a few weeks.
Illustration courtesy of aofoundation.org