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The International Journal of Oral & Maxillofacial Implants
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Int J Oral Maxillofac Implants 6 (1991), No. 4     1. Dec. 1991
Int J Oral Maxillofac Implants 6 (1991), No. 4  (01.12.1991)

Page 405-412


Tissue Integration of One-Stage ITI Implants: 3-Year Results of a Longitudinal Study With Hollow-Cylinder and Hollow-Screw Implants
Buser, Daniel / Weber, Hans Peter / Brägger, Urs / Balsiger, Christian
This study examined the tissue integration of one-stage, nonsubmerged ITI implants over a period of 3 years. Fifty-four implants were placed in 38 partially edentulous patients. Following healing (at least 3 months), all 54 implants were free of peri-implant infections and revealed no detectable mobility. Radiographs showed no signs of peri-implant radiolucencies, and the implants were in favorable positions for prosthetic restoration. Following incorporation of fixed partial dentures, patients were enrolled in a hygiene recall program with 3-month intervals and were examined once a year. Based on predefined criteria, each implant was classified as successful or failing. After the 3-year observation period, 51 of 53 implants (96.2%) were considered successfully integrated. (One patient with one implant dropped out of the study.) Two implants exhibited recurrent peri-implant infections and were classified as late failures. These results indicate that one-stage ITI implants can achieve successful tissue integration on a predictable basis and that it can be maintained over a period of at least 3 years.

Keywords: criteria of success, ITI implants, long-term study, one-stage implants, tissue integration