PURPOSE: To investigate the application of submandibular endotracheal intubation for treatment of patients with complex 摘要目的：探讨下颌下径路经口气管内插管在复杂颌面部骨折治疗中的应用。
Such subglottic ulcers are produced with prolonged endotracheal intubation in which the cuff of the endotracheal tube fi这样的声门下溃疡是可由长期的气管内插管造成的，往往见于插管过紧。