抄録
Intraoral vertical ramus osteotomy （IVRO） does not achieve internal fixation; therefore, it requires measures to prevent complications from the need for postoperative maxillomandibular fixation （MMF） or strong intermaxillary rubber traction in a short period of time after surgery. We have devised a breathing management splint （BMS） to manage breathing and prevent complications after IVRO. From September 2011, BMS was applied to patients who chose IVRO. In this report, we describe the procedure and management of BMS after IVRO in a typical case and also investigate postoperative nausea and vomiting （PONV） occurrence on BMS application. BMS is used to maintain a gap in the anterior teeth by raising the bite for a few days immediately after surgery. This is one of the methods used to manage problems such as airway obstruction by PONV, difficulty in breathing due to postoperative swelling, and failure of sputum discharge due to MMF, while offering the benefits of IVRO. It uses the benefits of the harmonious relationship formed by adaptive changes in the muscles. The temporomandibular joint is rebuilt once IVRO helps the occlusion to function again after surgery. BMS is also expected to improve the functions of the temporomandibular joint without changing the conventional method. Therefore, it is a highly useful and convenient management method used during MMF, with respect to the patient as well as the medical field.
