Share Page:

Volume 10 , Issue 2
March/April 1995

Pages 231-243

A 10-Year Follow-Up Study of IMZ and TPS Implants in the Edentulous Mandible Using Bar-Retained Overdentures

Hubertus Spiekermann, Prof Dr Med, Dr Med Dent/Volker K. Jansen, Dr Med Dent/Ernst-Jürgen Richter, Priv-Doz Dr Med Dent, Dipl-Ing

PMID: 7744443

This study presents data related to 136 patients who were treated with 300 implants in the edentulous mandible anterior to the mental foramina. Two implant systems were used: the titanium plasma-sprayed screw implant (TPS) and the intramobile cylinder implant (IMZ) in three different modifications. The longest observation time was 11 years, with a mean of 5.7 years. Patients were recalled for regular clinical examinations once every 6 months. After prosthesis placement, only a few implant losses were recorded, although critical states could be found according to periodontal standards. This led to the definition of success criteria according to clinically tolerable bone loss or pocket-probing depths. The 5-year survival rate considering the implant loss was greater than 90% for all implant systems and was lowest for the new type IMZ 3.3. Selecting a vertical bone loss of 4 mm or more as failure criterion reduced the survival rates, which then ranged from 83% to 97% (according to the implant system) for the 5-year interval. The mean annual bone-level change was identified individually for each implant using a linear-regression model. (INT J ORAL MAXILLOFAC IMPLANTS 1995;10:231–243)

Key words: edentulous mandible, IMZ implants, long-term follow-up, mean annual bone-level change, overdenture, success criteria, success rates, TPS implants

Full Text PDF File | Order Article


Get Adobe Reader
Adobe Acrobat Reader is required to view PDF files. This is a free program available from the Adobe web site.
Follow the download directions on the Adobe web site to get your copy of Adobe Acrobat Reader.


© 2017 Quintessence Publishing Co, Inc JOMI Home
Current Issue
Ahead of Print
Author Guidelines
Accepted Manuscripts
Submission Form
Quintessence Home
Terms of Use
Privacy Policy
About Us
Contact Us