title: Maxillary sinusitis caused by dental implants extending into the maxillary sinus and the nasal cavities.
abstract: This report describes the case of a patient who underwent osseointegrated dental implant placement. The implants were misplaced inside the nasal fossae and in the right maxillary sinus, causing chronic purulent sinusitis. CT scan without contrast showed signs of right maxillary sinusitis and confirmed the misplacement of four dental implants that surfaced into the nasal cavities. The imaging also revealed the presence of another implant that emerged inside the maxillary sinus. The patient underwent functional endoscopic sinus surgery with complete symptom remission at the long-term follow-up. We propose that sinusitis caused by protrusion of implants and by sinus floor lift procedures could share common physiopathological patterns and predisposing factors.
authors.affiliation: Department of Otorhinolaryngology, San Raffaele Scientific Institute, Milan, Italy.
authors.forename: Matteo
authors.initials: M
authors.lastname: Biafora
authors.forename: Giacomo
authors.initials: G
authors.lastname: Bertazzoni
authors.forename: Matteo
authors.initials: M
authors.lastname: Trimarchi
mesh_terms: D000328:Adult; D000900:Anti-Bacterial Agents / Q000627:therapeutic use; D015921:Dental Implants / Q000009:adverse effects*; D004724:Endoscopy / Q000379:methods; D005157:Facial Pain / Q000209:etiology; D005260:Female; D005500:Follow-Up Studies; D005547:Foreign Bodies / Q000000981:diagnostic imaging / Q000209:etiology*; D006801:Humans; D008137:Longitudinal Studies; D008443:Maxillary Sinus / Q000000981:diagnostic imaging*; D015523:Maxillary Sinusitis / Q000000981:diagnostic imaging / Q000209:etiology*; D009296:Nasal Cavity / Q000000981:diagnostic imaging*; D015508:Nasal Obstruction / Q000209:etiology; D012220:Rhinitis / Q000000981:diagnostic imaging / Q000209:etiology*; D007507:Therapeutic Irrigation / Q000379:methods; D014057:Tomography, X-Ray Computed / Q000379:methods; D014420:Turbinates / Q000000981:diagnostic imaging
chemical_list: D000900:Anti-Bacterial Agents; D015921:Dental Implants
keywords: Sinusitis; dental implants; endoscopic surgery