A Case of Glandular Odontogenic Cyst Developing in the Maxilla

Glandular odontogenic cyst （GOC） is a rare odontogenic cyst and is categorized as a developmental odontogenic cyst. Herein, we report a case of GOC developing in the maxilla. The patient was a 25-year-old man who complained of swelling of the left buccal region. CT images showed a unilocular radiolucent lesion extending from the maxillary anterior region to the maxillary sinus. The lesion included an impacted tooth, and root resorption of 21, 22, 23 and 24 was observed. A biopsy suggested that it was GOC. He underwent cystectomy with root canal filling and apicoectomy of the 21, 22, 23 and 24 under general anesthesia. The wound was opened to the oral cavity. Histopathological diagnosis was GOC. Nine months later, tooth extraction of 21, 22, 23 and 24 was performed because of their increased mobility. Two months later, reconstruction of the alveolar ridge using particulate cancellous bone and marrow （PCBM） was carried out. Nine months after the PCBM graft, 3 dental implants were placed into the reconstructed bone, and an implant-retained overdenture treatment was completed. Since then, the overdenture has uneventfully functioned for 4 years and 9 months, with no evidence of recurrence.