title: Foreign body in the maxillary sinus: report of an unusual case.
abstract: The accidental displacement of foreign bodies into the maxillary sinus is not an unusual complication in dental clinical practice. However, dental materials, and, in particular, dental impression materials, introduced into the sinus several weeks to months after a maxillary tooth extraction or dentoalveolar surgery through either a small, long-standing oroantral fistula or an insufficiently healed extraction wound is uncommon. In the case reported, 3 months after a maxillary molar extraction, the material used for maxillary impression was pushed into the antrum through a small, almost invisible, oroantral fistula that was unseen by the specialists the patient had been visiting, worsening the patient's existing sinusitis.
authors.affiliation: University Clinic of Oral and Maxillofacial Surgery, General Hospital, G. Papanikolaou, Aristotle University of Thessaloniki, Greece. idim@dent.auth.gr
authors.forename: Ioannis
authors.initials: I
authors.lastname: Dimitrakopoulos
authors.forename: Maria
authors.initials: M
authors.lastname: Papadaki
mesh_terms: D003760:Dental Impression Materials / Q000009:adverse effects; D003761:Dental Impression Technique / Q000009:adverse effects; D005547:Foreign Bodies / Q000150:complications / Q000209:etiology / Q000601:surgery; D006801:Humans; D008297:Male; D008443:Maxillary Sinus / Q000601:surgery; D015523:Maxillary Sinusitis / Q000150:complications; D008875:Middle Aged; D009957:Oroantral Fistula / Q000150:complications / Q000209:etiology*; D014081:Tooth Extraction / Q000009:adverse effects*
chemical_list: D003760:Dental Impression Materials