Published Paper Details:

Complex odontomas arising in the posterior maxilla are uncommon, and extension into the maxillary sinus can mimic chronic sinus disease. Early recognition and appropriate surgical management are crucial to prevent recurrent sinus pathology and facial discomfort. A 14-year-old male presented with a chief complaint of proclined maxillary anterior teeth. Radiographic evaluation using orthopantomograph, lateral cephalogram, and cone-beam computed tomography revealed a large, well-defined radiopaque mass with a thin radiolucent rim in the right posterior maxilla, extending into the maxillary sinus and associated with an impacted second molar. The provisional diagnosis of a complex odontoma was made. Under general anaesthesia, surgical excision of the lesion was performed using a piecemeal approach due to its size and relation to adjacent structures, followed by removal of the impacted tooth. A minor discontinuity in the sinus lining was repaired with a collagen membrane. Postoperative healing was uneventful, and histopathological analysis confirmed the diagnosis of complex odontoma. The patient was subsequently rehabilitated to restore masticatory function and maintain occlusal stability. This case emphasizes the significance of timely diagnosis, meticulous surgical intervention, and interdisciplinary management in treating large odontomas involving the maxillary sinus.