Wiley Acta Medica Okayama 2050-0904 9 1 2020 Surgical resection of a giant peripheral ossifying fibroma in mouth floor managed with fiberscopic intubation 180 184 EN Tatsuo Okui Department of Oral and Maxillofacial Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences Soichiro Ibaragi Department of Oral and Maxillofacial Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences Kisho Ono Department of Oral and Maxillofacial Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences Kazuaki Hasegawa Department of Oral and Maxillofacial Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences Akira Sasaki Department of Oral and Maxillofacial Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences Tracheal intubation for general anesthesia can sometimes be difficult in patients with a large mass in the mouth floor. Preoperative evaluation of the patient's airway is most important when treating large oral disease. No potential conflict of interest relevant to this article was reported.