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The International Journal of Oral & Maxillofacial Implants
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Int J Oral Maxillofac Implants 16 (2001), No. 1     15. Feb. 2001
Int J Oral Maxillofac Implants 16 (2001), No. 1  (15.02.2001)

Page 52-60


The Self-tapping and ICE 3i Implants: A Prospective 3-Year Multicenter Evaluation
Davarpanah, Mithridade / Martinez, Henry / Tecucianu, Jean-François / Alcoforado, Gil / Etienne, Daniel / Celletti, Renato
This multicenter prospective clinical evaluation was undertaken to determine the therapeutic success and marginal bone level stability of 3is self-tapping and ICE implants after 3 years of prosthetic loading. Between July 1995 and June 1996, 189 completely or partially edentulous patients were treated with 614 machined-surface screw-type commercially pure titanium implants (self-tapping or ICE). Two hundred seventy-seven self-tapping implants were placed in 85 patients (average age of 56 years), and 337 ICE implants were placed in 104 patients (average age of 61 years). A total of 360 implants (58.6%) were placed in posterior segments. Easier placement was reported with the ICE implant in normal or dense bone. For the self-tapping implants, survival rates of 92.9% and 91.6% were noted after 1 and 3 years of prosthetic loading, respectively. Survival rates of 95.4% and 93.8% were obtained with the ICE implant for the same periods. Late failures (after loading) were more common than early failures (before loading) for both types of implants. The marginal bone level of 238 self-tapping implants (85.9%) and of 307 ICE implants (91%) was radiographically evaluated at 3 years. Marginal bone level was at the first thread for 95.1% of implants. A loss of marginal bone level of 2 to 4 threads was noted for 4.9% of the evaluated implants. No implant showed bone loss greater than the fourth thread. Overall survival rates of 94.3% and 92.9% were obtained after 1 and 3 years of prosthetic loading, respectively, for 596 and 588 implants.

Keywords: bone density, clinical trials, dental implants, multicenter study, self-tapping dental implants