Abstract
We report a case of chronic maxillary sinusitis caused by denture lining material entering through an oroantral fistula after tooth extraction. The patient was an 80-year-old female who visited us with a complaint of pus discharge from the right posterior maxilla. She had extraction of the upper right second molar and had her upper denture relined with silicone lining material. The patient noticed swelling of the right cheek and purulent rhinorrhea 20 days before her first visit to our clinic. Oral examination showed an oroantral fistula with a diameter of 3 mm in the posterior alveolar ridge of the right maxilla. Computed tomography revealed a hyperdense foreign body in the right maxillary sinus and thickening of the mucosal lining. Under diagnosis of maxillary sinusitis caused by a foreign body, endoscopic maxillary surgery was performed simultaneously with the removal of the foreign body. The foreign body removed was 12 × 6 mm in size, oval in shape, light pink in color, and compatible with silicone denture lining material. During the follow-up it was observed that the oroantral fistula closed spontaneously after the removal of the foreign body. The maxillary sinus was in a good shape without recurrence of sinusitis seven months after surgery.
Highlights
Maxillary sinusitis is occasionally odontogenic because of the anatomic juxtaposition of the teeth and maxillary sinus
This paper reports a rare case of chronic maxillary sinusitis caused by denture lining material entering through an oroantral fistula, which was successfully treated endoscopically
There are no reports of maxillary sinusitis caused by silicone soft lining material entering through an oroantral fistula
Summary
Maxillary sinusitis is occasionally odontogenic because of the anatomic juxtaposition of the teeth and maxillary sinus. Small foreign bodies in the maxillary sinus can be expelled spontaneously, but in most cases they require removal because they may cause chronic sinusitis [9]. A variety of techniques have been reported for the removal of foreign bodies such as endoscopic surgery and an intraoral direct approach through the anterior maxillary wall.
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