A Case of an Ectopically Impacted Wisdom Tooth Which Migrated to the Mandibular Notch

DOI Web Site 3 References
  • ICHIKAWA HARUNO
    St. Marianna University School of Medicine Kawasaki Municipal Tama Hospital, Oral and Maxillofacial Surgery
  • ARAI GO
    St. Marianna University School of Medicine Kawasaki Municipal Tama Hospital, Oral and Maxillofacial Surgery
  • NONAKA SAKI
    St. Marianna University School of Medicine Kawasaki Municipal Tama Hospital, Oral and Maxillofacial Surgery
  • KASAHARA HIDEO
    Department of Oral and Maxillofacial Surgery, Kanto Rosai Hospital, Japan Labour Health and Welfare Organization
  • ISHII HIROAKI
    St. Marianna University School of Medicine Kawasaki Municipal Tama Hospital, Oral and Maxillofacial Surgery

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Other Title
  • 下顎切痕部に移動した異所性埋伏智歯の1例

Abstract

We describe a case in which an impacted mandibular wisdom tooth migrated to the mandibular notch. A 50-year-old man visited our department in May 202X with the chief complaint of right mandibular gingival swelling. Computed tomography （CT） revealed that the right impacted mandibular wisdom tooth was near the mandibular notch, with a radiolucent lesion including the crown. Based on a clinical diagnosis of an ectopically impacted wisdom tooth with cystic lesion, in August 202X, under general anesthesia, we performed extraction and enucleation of the ectopically impacted wisdom tooth. The histopathological diagnosis of the extracted tissue was inflammatory granulation tissue. It is now 2 years since we performed the surgery, and the patient has made good progress. In order to determine the cause of the ectopically impacted wisdom tooth, a comparison of panoramic radiographs taken 9 years earlier revealed that the right impacted mandibular wisdom tooth had migrated over time from the right lower second molar central to the vicinity of the mandibular notch.

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