title: Transnasal Endoscopy Removal of Dislodged Dental Implant: A Case Report.
abstract: Displacement of dental implants into the maxillary sinus is a rare complication. This article presents a case of displaced dental implant into maxillary sinus. Retrieval of the dental implant from left maxillary sinus was performed via endoscopic sinus surgery. This case highlighted a delayed referral of a 53-year-old male by a general dental practitioner for management of a dislodged dental implant into the left maxillary antrum. The implant was dislodged during placement of a healing abutment 4 months after implant insertion to replace missing 25. Cone beam computerized tomography revealed the displaced implant was located at the ostium of the left nose. A sudden change in sinonasal pressure when the patient took a deep breath during the procedure may have created a negative pressure and suction effect causing the implant to be dislodged and embedded at the ostium. In view of its position, a referral to an otorhinolaryngologist was made for endoscopic removal of the displaced implant. This case also highlighted the need for inter disciplinary cooperation in the management of such a complication for the best interest of the patients.
authors.affiliation: 1   Department of Oro-Maxillofacial Surgical and Medical Sciences, Faculty of Dentistry, University of Malaya, Kuala Lumpur, Malaysia.
authors.forename: Daniel
authors.initials: D
authors.lastname: Lim
authors.affiliation: 2   Oral Surgery Clinic, Hospital Sultanah Aminah, Johor Bahru, Malaysia.
authors.forename: Rosliza
authors.initials: R
authors.lastname: Parumo
authors.affiliation: 2   Oral Surgery Clinic, Hospital Sultanah Aminah, Johor Bahru, Malaysia.
authors.forename: Ma Bee
authors.initials: MB
authors.lastname: Chai
authors.affiliation: 3   Otorhinolaryngology Clinic, Hospital Sultanah Aminah, Johor Bahru, Malaysia.
authors.forename: Jothi
authors.initials: J
authors.lastname: Shanmuganathan
mesh_terms: D054893:Cone-Beam Computed Tomography; D015921:Dental Implants; D004724:Endoscopy / Q000379:methods*; D005548:Foreign-Body Migration / Q000000981:diagnostic imaging / Q000601:surgery*; D006801:Humans; D008297:Male; D008443:Maxillary Sinus / Q000000981:diagnostic imaging / Q000601:surgery*; D008875:Middle Aged; D009666:Nose / Q000601:surgery
chemical_list: D015921:Dental Implants
keywords: dental implant; maxillary sinus; sinonasal pressure; transnasal endoscopy