Methods: 720 cases of maxillofacial traumas were chosen and divided into two groups in random by with or without MEBO.

• 方法:选择720例颌面部外伤病例,随机分为应用MEBO的治疗组和不用MEBO的对照组,对治疗后疼痛、感染及创面愈合情况进行疗效分析。