Extraocular muscle damage from dental implant penetration to
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Dental implants are extensively used worldwide for replacing missing teeth and as an adjunct in the reconstruction of jaws and teeth. Patients with a fully edentulous (toothless) maxilla present a rehabilitation challenge since bone augmentation is usually required to enable placement of dental implants. Zygomatic implants are long screw-shaped implants developed for use as an alternative to bone augmentation procedures in the severely atrophic maxilla. An elderly patient who underwent dental implantation to the zygomatic bone was hospitalized in the ophthalmology department with the impaired abduction of her right eye, also evident on ocular examination. Head computed tomography demonstrated damage to the lateral rectus and to the inferior oblique muscles. The clinical assessment determined these muscles could not be repaired and reattached. The extent of irreversible damage in the patient was a permanent limitation in movement of her affected eye with subsequent strabismus.

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