A. Niimi et al., A JAPANESE MULTICENTER STUDY OF OSSEOINTEGRATED IMPLANTS PLACED IN IRRADIATED TISSUES - A PRELIMINARY-REPORT, The International journal of oral and maxillofacial implants, 12(2), 1997, pp. 259-264
A survey was undertaken to analyze implants placed in irradiated tissu
es. It was found that nine centers had placed 118 implants in 24 patie
nts 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 a
djunctive 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.