title: A Japanese multicenter study of osseointegrated implants placed in irradiated tissues: a preliminary report.
abstract: A survey was undertaken to analyze implants placed in irradiated tissues. It was found that nine centers had placed 118 implants in 24 patients in Japan. Of 118 implants, 39 were in the maxilla, 71 were in the mandible, and 8 were in the orbital region. Seven patients underwent adjunctive hyperbaric oxygen treatment. The treatment decreased implant loss only in the maxilla. (The success rate without hyperbaric oxygen treatment was 62.5%, and that with hyperbaric oxygen treatment was 80.0% for the maxilla.) Implants 7 and 10 mm in length were at a greater risk of being lost than longer implants in the maxilla.
authors.affiliation: Department of Oral Surgery, Nagoya University, School of Medicine, Japan.
authors.forename: A
authors.initials: A
authors.lastname: Niimi
authors.forename: T
authors.initials: T
authors.lastname: Fujimoto
authors.forename: Y
authors.initials: Y
authors.lastname: Nosaka
authors.forename: M
authors.initials: M
authors.lastname: Ueda
mesh_terms: D003758:Dental Implantation, Endosseous; D015921:Dental Implants; D017267:Dental Prosthesis Design; D019232:Dental Restoration Failure; D004867:Equipment Design; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D006931:Hyperbaric Oxygenation; D007564:Japan; D007568:Jaw / Q000528:radiation effects*; D008297:Male; D008334:Mandible / Q000528:radiation effects / Q000601:surgery; D008437:Maxilla / Q000528:radiation effects / Q000601:surgery; D008875:Middle Aged; D009915:Orbit / Q000000981:diagnostic imaging / Q000601:surgery; D056948:Orthognathic Surgical Procedures; D016348:Osseointegration; D019736:Prostheses and Implants; D011859:Radiography; D011878:Radiotherapy / Q000009:adverse effects; D016896:Treatment Outcome
chemical_list: D015921:Dental Implants