Replacement of a mandibular subperiosteal implant.

This case report describes the replacement of a failed subperiosteal implant with a tripodal design in a 60-year-old woman. The patient had been given the option of an augmentation using an autogenous iliac crest graft with subsequent insertion of endosteal implants or of replacing the failed implant with another of more sophisticated design. The latter, a more conservative approach, was selected for both economic and quality-of-life issues.