A 35-year-old man presented to the Department of Stomatology, PLA 89 Hospitan in Weifang, with left massater region swelling, palpable pain, limitation of mouth opening, and tooth socket empty with slight bleeding at left wisdom tooth position. There was a history of odontectomy of left wisdom tooth 4 hours ago. The medical history of the patient was non-contributory. The patient was hospitalized. CT image and panoramic radiograph revealed lingual bone plate perforation of left wisdom tooth socket, and a high density tooth root appeared at the mesial side of mandible angle. After ENT consultation, nasal endoscope was used to remove the tooth root.Mattress suture was applied to the wisdom tooth socket.

mandible third molar, pterygomandibular space, nasal endoscope