Osseointegrated dental implants are a widely used method of replacing lost or missing teeth. Resorption of the alveolar ridge of the edentulous posterior maxilla may necessitate augmentation before osseointegration to provide adequate bone for implant fixation. This can be accomplished through an intraoral approach to the maxillary sinus, with elevation of the mucosa of the sinus floor creating a pocket for graft placement. Disruption of the intact sinus mucosa may result in sinusitis, graft infection, or extrusion with secondary formation of an oroantral communication. To treat these patients effectively, the otolaryngologist must be aware of the techniques of sinus augmentation and osseointegration as well as the etiology of associated complications. We will discuss the management of four patients with significant sinus complications, and evaluate the otolaryneologist's role in the preoperative and postopera-live care of these patients.
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