Abstract
Odontoma, an odontogenic tumor, occurs in 20% of all odontogenic benign tumors. Odontomas are classified into compound odomtomas and complex odontomas, and the latter is less common.
We report here a case of relatively large complex odontoma that was 4×2×2cm in size and occupied the whole molar area of the mandible of the left side of a 56-year-old man. The tumor was entirely resected by segmental resection of the mandible, which was immediately reconstructed with autogenous iliac bone graft. The postoperative course has been favorable. Microscopic examination of the tumor showed a characteristic finding of the complex odontoma, that is, constitution of a haphazard arrangement of enamel, dentin and cementum.
Additionally, we made a review of the literature and a clinical discussion in regarding the tumor size, location, and treatment.