口腔治疗有时出现面部皮下气肿。个案报导逐年增多。本文报告2例如下。病例报告例1:男性、28岁。1979年6月4日住院。因(?)慢性根尖周围炎有瘘管,在进行根管治疗时根管旁穿,误认为扩至根尖,当用3%双氧水冲洗时,药液未从瘘管流出,龈颊沟立即发白、肿胀,随即切开放置引流条,24小时后左侧颧颊部形成气肿。经使用抗感染药物7天,气肿消失。 Dental treatment sometimes facial subcutaneous emphysema. Case reports increased year by year. This article reports 2 cases as follows. Case Report Example 1: Male, 28 years old. June 4, 1979 hospitalization. (?) Chronic periapical inflammation of the fistula, root canal treatment of root canal next to wear, mistaken for expansion to the root tip, when washed with 3% hydrogen peroxide solution did not flow out from the fistula, gingival cheek groove immediately White, swollen, then placed open drainage rod, 24 hours after the formation of left zygomatic cheeks emphysema. After seven days of anti-infectives, the emphysema disappeared.