The management of complications following displacement of oral implants in the paranasal sinuses: a multicenter clinical report and proposed treatment protocols.

Abstract	This study retrospectively analyses paranasal sinus complications following displacement of oral implants in the maxillary sinus treated according to clinical situation by functional endoscopic sinus surgery (FESS), an intraoral approach, or a combination of both procedures. Over 5 years, 27 patients (13 male; 14 female), aged 27-73 years (mean 53.9 years), underwent treatment for postoperative complications involving the paranasal sinuses following displacement of oral implants in the maxillary sinuses. According to the complication (implant displacement, implant displacement with or without reactive sinusitis and/or with or without associated oro-antral communication), patients were treated with FESS, intraoral approach to the sinus, or FESS associated with an intraoral approach. Follow up lasted for at least 1 year with clinical and radiographic controls. 26 patients recovered completely; one patient underwent re-intervention with FESS and an intraoral approach 2 years after implant removal, due to persistent signs and symptoms of maxillary sinusitis and oro-antral communication. Postoperative recovery after the second procedure was followed by complete recovery. The results demonstrate that a rational choice of surgical protocol for the treatment of complications involving the paranasal sinuses following displacement of implants in the maxillary sinuses may lead to reliable results.
Authors	M Chiapasco, G Felisati, A Maccari, R Borloni, F Gatti, F Di Leo
Journal	International journal of oral and maxillofacial surgery (Int J Oral Maxillofac Surg) Vol. 38 Issue 12 Pg. 1273-8 (Dec 2009) ISSN: 1399-0020 [Electronic] Denmark
PMID	19781911 (Publication Type: Clinical Trial, Journal Article, Multicenter Study)
Chemical References	Dental Implants
Topics	Adult Aged Clinical Protocols Dental Implants (adverse effects) Endoscopy (methods) Female Follow-Up Studies Foreign Bodies (etiology, surgery) Foreign-Body Migration (etiology, surgery) Humans Male Maxillary Sinus (surgery) Maxillary Sinusitis (etiology, surgery) Middle Aged Oroantral Fistula (etiology, surgery) Osteotomy (methods) Postoperative Complications (surgery) Recurrence Reoperation Retrospective Studies Sphenoid Sinus (surgery) Treatment Outcome Wound Healing (physiology)

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