title: Migration of implants into the maxillary sinus: two clinical cases.
abstract: Invasion of the maxillary sinus is a relatively frequent complication in dental implant treatment of patients with inadequate bone height in the posterior maxilla. This event usually occurs during surgery and sometimes produces sinusitis. There is a paucity of reports in the literature of implants migrating into the sinus cavity after a period of function. In the 2 clinical cases presented, an intraosseous apical movement of the implants was produced several years after placement of the implants. Hypotheses and possible mechanisms by which an implant may migrate into the maxillary sinus are described.
authors.affiliation: Department of Oral and Maxillofacial Surgery, School of Dentistry, University of Granada, Spain.
authors.forename: Pablo
authors.initials: P
authors.lastname: Galindo
authors.forename: Elena
authors.initials: E
authors.lastname: Sánchez-Fernández
authors.forename: Gustavo
authors.initials: G
authors.lastname: Avila
authors.forename: Antonio
authors.initials: A
authors.lastname: Cutando
authors.forename: Juan Emilio
authors.initials: JE
authors.lastname: Fernandez
mesh_terms: D000328:Adult; D015921:Dental Implants / Q000009:adverse effects*; D005500:Follow-Up Studies; D005548:Foreign-Body Migration / Q000000981:diagnostic imaging / Q000209:etiology*; D006801:Humans; D007576:Jaw, Edentulous, Partially / Q000534:rehabilitation / Q000601:surgery; D008297:Male; D008437:Maxilla / Q000000981:diagnostic imaging / Q000601:surgery; D008443:Maxillary Sinus / Q000000981:diagnostic imaging; D008875:Middle Aged; D011862:Radiography, Panoramic
chemical_list: D015921:Dental Implants