2007 Volume 27 Issue 1-2 Pages 84-91
Clinical application of the titanium endosseous implant treated by electric discharge machining (IAT Fit®, ISIFUKU Co.) has started in 1995. In this study, 297 implants were placed in 96 patients (38 males and 58 females) aged 24 to 77 years at 3 facilities . There were 56 implants placed in the posterior maxilla and 241 implants in the posterior mandible. Of the 297 implants placed, 13 implants failed within the connection of completed prostheses after placement because of the early failure of osseointegration, and 8 failed during the period of observation.
The survival rates of the implant were assessed using a life table method. The factors investigated were the implant location, mandible/maxilla, and the implant length, 8mm/10mm or more. The total survival rate was 95.6% up to 5-10 years. On the location and length of the implants, no statistical difference existed between these results.
The clinical results indicated that the titanium endosseous implant treated by electric discharge machining was effective in long-term treatment of patients regardless of the location and length of the implant.
