International Poster Journal of Dentistry and Oral Medicine
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Int Poster J Dent Oral Med 3 (2001), No. 3     15. Sep. 2001
Int Poster J Dent Oral Med 3 (2001), No. 3  (15.09.2001)

Poster 92, Language: English


Analysis of implant longevity in four types of alveolar augmentation
Ebbing, Birgit/Kleinheinz, Johannes/Joos, Ulrich
Purpose Loss of implants is a clinic problem especially in alveoli that have been edentulous for long periods. The combination of various augmentation procedures, with primary or secondary implantations, will improve survival rate. This study intended to correlate the survival rate with individual patients' parameters.
Methods A total of 194 patients who underwent reconstruction of deficient dental alveolar ridges and insertion of endosseous implants were evaluated retrospectively. In addition, 134 patients, who are in a multi-disciplinary clinical recall system, were examined on a clinical and anamnestic level. The correlations between an individual patient's bone situation, the surgical technique and the implant survival, were evaluated statistically.
Results & Discussion We found an overall implant survival rate of 96,8 % in our patients. The best results were obtained in partially edentulous patients by autologous bone grafts in combination with primary implantation. Total alveolar ridge augmentation resulted in the highest implant loss rates, both with primary and secondary implantations. And these were associated with the occurance of a Periimplantitis. Lack of preservation of the soft tissue integrity seems to be the main underlying cause for implant loss.

Keywords: implant, augmentation, longevity

Conference/Exhibition:
10. - 12. Mai 2001
9th International Congress on Reconstructive Preprosthetic Surgery
Kiel, Germany