Use of osseointegrated implants in the restoration of head and neck defects.
Osseointegrated implants can be applied to facilitate retention, stability, and support for facial and intraoral prostheses used to restore head and neck defects. At the University of California, Los Angeles, Maxillofacial Prosthetics Clinic, retrospective studies have indicated that in nonirradiated maxillectomy patients, implant survival rates are 82.6 percent. In mandibles reconstructed with fibula free flaps, survival rates are 94.6 percent. Similarly, high implant survival rates have been observed for most sites used to support facial prostheses. Cumulative six-year survival rates for auricular sites exceed 95 percent and for floor of nose sites, success rates exceed 87 percent. However, survival rates are low (53 percent) for implants placed in the frontal bone for retention of orbital prostheses and even lower for irradiated bone sites ranging from 63 percent in the maxilla to 27 percent in the orbit.
Roumanas
Eleni D
ED
Division of Advanced Prosthodontics, Biomaterials and Hospital Dentistry, University of California, Los Angeles, School of Dentistry, 90095, USA.
Chang
Ting-Ling
TL
Beumer
John
J
D016025:Bone Transplantation; D003758:Dental Implantation, Endosseous; D004431:Ear, External; D005145:Face / Q000601:surgery; D005147:Facial Bones / Q000601:surgery*; D005624:Frontal Bone / Q000528:radiation effects / Q000601:surgery; D006801:Humans; D006931:Hyperbaric Oxygenation; D008334:Mandible / Q000601:surgery; D008409:Mastication / Q000502:physiology; D008437:Maxilla / Q000528:radiation effects / Q000601:surgery; D009296:Nasal Cavity / Q000601:surgery; D009915:Orbit / Q000528:radiation effects / Q000601:surgery; D016348:Osseointegration / Q000502:physiology*; D010025:Osteoradionecrosis / Q000503:physiopathology; D010158:Palatal Obturators; D019919:Prosthesis Implantation; D011879:Radiotherapy Dosage; D019651:Plastic Surgery Procedures; D012189:Retrospective Studies; D013524:Surgical Flaps; D016019:Survival Analysis; D016896:Treatment Outcome