title: An unusual foreign body in the maxillary sinus: Dental impression material.
abstract: Foreign bodies in paranasal sinuses are very rare and most of them are encountered in the maxillary sinus. These foreign bodies may be organic or inorganic and can enter the maxillary sinus through an oro-antral fistula. The oro-antral fistula is formed by a break in the bony segment of the maxillary sinus floor and usually arises subsequent to maxillary premolar and molar extractions. A 63-year-old female patient evaluated for a nonhealing, left, toothless palate lesion and chronic headache occurring over 4 years. Radiography and computed tomography revealed bone discontinuity in the left floor of the maxillary sinus and calcifications within the antrum. A blue foreign body, later identified as dental impression material, was removed by intranasal endoscopy. A careful oral examination is recommended prior to prosthetic restorations. In addition, paranasal sinus foreign bodies should be surgically removed to prevent secondary soft tissue reactions.
authors: Department of Dental and Maxillofacial Radiology, Faculty of Dentistry, Ondokuz Mayıs University, Samsun, Turkey.
authors: Y
authors: Y
authors: Deniz
authors: A Z
authors: AZ
authors: Zengin
authors: R
authors: R
authors: Karli
mesh_terms: D003760:Dental Impression Materials; D004724:Endoscopy / Q000379:methods; D005260:Female; D005547:Foreign Bodies / Q000150:complications; D006801:Humans; D008443:Maxillary Sinus / Q000000981:diagnostic imaging*; D015523:Maxillary Sinusitis / Q000175:diagnosis / Q000209:etiology*; D008875:Middle Aged; D008963:Molar; D009957:Oroantral Fistula / Q000150:complications* / Q000000981:diagnostic imaging; D011859:Radiography; D059546:Sinus Floor Augmentation; D014057:Tomography, X-Ray Computed
chemical_list: D003760:Dental Impression Materials