両側上顎洞に多発性に生じた集合性歯牙腫の1例

• Published in: 日本口腔外科学会雑誌 Vol. 63; no. 8; pp. 394 - 398
• Main Authors: 森田, 祥弘, 川北, 智織, 森田, 展雄, 岩上, 隆紀, 仁木, 敦子, 楠山, 友紀子
• Format: Journal Article
• Language: Japanese
• Published: 社団法人 日本口腔外科学会 20.08.2017
• Subjects: 上顎洞; 多発性; 歯原性腫瘍; 集合性歯牙腫
• ISSN: 0021-5163; 2186-1579
• DOI: 10.5794/jjoms.63.394

Odontomas are benign tumors of odontogenic origin composed of different dental tissues, including enamel, dentine, cementum, and pulp tissue. The World Health Organization classification divides odontomas into complex odontomas and compound odontomas. Compound odontomas rarely occur at multiple sites. We report a case of multiple compound odontomas arising in the maxillary sinuses. A 21-year-old man visited a dental clinic because of the pain of the right maxillary molar region. Pulpectomy was performed for a diagnosis of pulpitis of the upper right first molar. Although the pain disappeared, panoramic X-ray examination revealed a number of small tooth-like calcified structures in the both sides of maxillary sinus floors. The patient was referred to our hospital to clarify the disorder. X-ray films and computed tomographic images showed multiple odontoma-like radiopaque structures in the both sides of the maxillary sinus floors. Surgery was performed with the patient under general anesthesia for a diagnosis of odontoma, and 17 tooth-like structures were removed. The histopathological diagnosis was a compound odontoma. Postoperatively the wounded healed uneventfully.