Abstract
Clinical evaluation was performed using commercial titanium 2-piece implants (IAT Fit Ⅱ®, ISHIFUKU Co.)whose fixture was treated by wire-type electric discharge machining.
One hundred ten fixtures were implanted in 32 patients between 1995 and 1997. One fixture was sleeping and 43 were super structures. Achievement of osseointegration was clinically evaluated for 109 fixtures. One fixture of the mandible failed without osseointegration. Therefore, the survival rate for the fixtures was 100.0% for maxillary and 99.0% for mandible during the follow-up period. These findings indicated the IAT Fit Ⅱ was highly biocompatible and clinically useful. Evaluation of maintenance of osseointegration with function will be continued in the future.