抄録
Edentulous jaws can be reconstructed using Osseointegrated Implant System with predicable long-term success. Initially, 262 fixtures were implanted and 227 remained functional from 1989 to 1994. For 5 years, the cumulative survival rate of implanted fixtures was 92.1%. There were 34 clinical complication cases.
That is, mobility of fixtures in 15, broken artifical teeth in 8, fractures of gold screws in 2, fractures of abutments in 1, inflammation of mucosa around abutment in 1, and radiographic bone resorption lesion at the tip of fixtures in 2 cases.
These problems were due to the poor surgical techniques of the dentists, not the system, and the efficacy of the system was very predictable.
