Figure 2.

Coronal CT image showing unerupted teeth which determined a sinusitis process involving the ipsilateral maxillary sinus, ostiomeatal complex and, partially, anterior ethmoid sinus. Furthermore, the infection progressively led to the formation of oro-antral communication. A combined approach was performed in order to drain and ventilate the involved sinuses via an endoscopic approach and to remove the unerupted teeth and close the oro-antral communication from an intraoral approach.