Chinese Journal of Oral Implantology ›› 2025, Vol. 30 ›› Issue (4): 384-387.DOI: 10.12337/zgkqzzxzz.2025.08.009

• Case Reports • Previous Articles     Next Articles

A case report of a peri-implant cyst

Xu Manjun, Liu Chunjie, Sun Licong, Li Hong, Guo Fujun   

  1. The First Affiliated Hospital, and College of Clinical Medicine of Henan University of Science and Technology, Luoyang 471003, Henan, China
  • Received:2024-12-04 Online:2025-08-30 Published:2025-08-29
  • Contact: Xu Manjun, Email: 1532146795@qq.com, Tel: 0086-379-69823266

Abstract: This paper reports a case of a peri-implant cyst associated with periapical periodontitis of the adjacent tooth. The patient presented with swelling and pain around the implant at site 47 in the right mandible, and the diagnosis was confirmed by cone beam computed tomography and other examinations. Treatment included removal of the loosened implant at site 47 and curettage of the cystic lesion. Additionally, a partial root resection and lesion curettage were performed on tooth 46. Histopathological examination confirmed an odontogenic cyst with secondary infection. Follow-up showed satisfactory wound healing without complications. Based on an in-depth analysis of this case and a review of the relevant literature, we comprehensively discuss the etiology, clinical features, diagnostic approaches, and prevention and treatment strategies for peri-implant cysts. This report aims to provide valuable insights for oral implant clinicians to enhance understanding, diagnosis, and management of this condition.

Key words: Peri-implant cyst, Peri-implantitis, Periapical periodontitis