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Volume 20 , Issue 2
March/April 2005

Pages 291–295

Migration of Implants into the Maxillary Sinus: Two Clinical Cases

Pablo Galindo, DDS, PhD/Elena Sánchez-Fernández, DDS, MD, PhD/Gustavo Avila, DDS/Antonio Cutando, MD, PhD/Juan Emilio Fernandez, MD, PhD

PMID: 15839124

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. Int J Oral Maxillofac Implants 2005;20:291–295

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