[Displaced dental material].

Please cite this article as: Watanabe K, Nakaya M. Desplazamiento de materia dental. Acta Otorrinolaringol Esp. 2013;65:269--270. ∗ Corresponding author. E-mail address: [email protected] (K. Watanabe). she had received root canal therapy for her left upper teeth eight years prior. Dental panoramic tomography suggested a foreign body in the left maxillary sinus, which seemed to be a displaced dental material (Fig. 1). Computed tomography also revealed mucosal thickening of the sinus around a radiopaque material (Fig. 2). Endoscopic sinus surgery was performed, which revealed that foreign material was buried in a bacterial ball surrounded by polypoid mucosa of the left