著者

谷池 直樹 前田 圭吾 平井 雄三 山本 信祐

出版者

日本口腔診断学会

雑誌

日本口腔診断学会雑誌 (ISSN:09149694)

巻号頁・発行日

vol.32, no.3, pp.216-219, 2019 (Released:2019-11-07)

参考文献数

14

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Tobacco smoking is a worldwide public health problem. Recently, there has been growing interest in smoking cessation. On the other hand, oral mucosal ulcers are common presentations encountered in daily practice. These ulcers may be caused by various etiologies.We report a case of refractory oral mucosal ulcer caused by improper use of nicotine gum. A male in his 50s presented to our department with an intractable ulcer in the oral floor existing for over 3 months. He had smoked 20 cigarettes per day for 25 years. He had given up smoking and been using nicotine gum for 6 months. He used two pieces of nicotine gum (2mg tablet) per day, and the gum was improperly placed at the oral floor for 3 to 4 hours per piece. An excisional biopsy was performed and revealed a mucosal ulcer without atypical cells. He was instructed to stop using nicotine gum at the first visit to our department, and the ulcer healed completely in 4 weeks.

著者

前田 圭吾 平井 雄三 高地 いづみ 山本 信祐 谷池 直樹 竹信 俊彦

出版者

日本口腔顎顔面外傷学会

雑誌

口腔顎顔面外傷 : 日本口腔顎顔面外傷学会誌 (ISSN:13479903)

巻号頁・発行日

vol.17, no.2, pp.64-68, 2018 (Released:2019-03-05)

参考文献数

31

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Recently, the frequency of maxillofacial injuries has increased and the causes have diversified. Blast injuries due to explosions can be life-threatening. We report a case of blast injury requiring emergency surgery for a mandibular fracture with active bleeding. A 59-year-old woman presented with an injury to the right face with hemorrhage, caused by a gas canister explosion at her home. She was transferred to the Emergency and Critical Care Center of our hospital. Her vital signs were normal and she was alert with a Glasgow Coma Scale score of 15; however, a penetrating wound of the right buccal region and active bleeding in the oral cavity were found. Contrast computed tomography revealed a right mandibular fracture and extravasation around the fracture region. There was a risk of airway obstruction from active oral cavity bleeding; therefore, we performed urgent open reduction and internal fixation for hemostasis. She received an intraoperative blood transfusion and hemostasis was achieved with good reduction and fixation. Fortunately, she had no other injuries and her clinical course was good. It is crucial to understand the unique mechanisms underlying a blast injury, and to perform appropriate clinical evaluation and treatment because of the possibility of head and neck injury, damaged neck vessels, and airway obstruction.