LOGIN
 
Share Page:
Back

Volume 26 , Issue 2
March/April 2011

Pages 347355


Influence of Implant Geometry on Primary Insertion Stability and Simulated Peri-implant Bone Loss: An In Vitro Study Using Resonance Frequency Analysis and Damping Capacity Assessment

Stefan Lachmann, Dr Med Dent/Johannes Yves Laval, Dr Med Dent/Detlef Axmann, Dr Rer Nat/Heiner Weber, Prof Dr Med Dent


PMID: 21483888

Purpose: To investigate the influence of implant geometry on primary stability and on peri-implant bone loss in an in vitro model using the Periotest and Osstell devices. Materials and Methods: Screw-type implants of various diameters and lengths were inserted into bovine bone blocks of different densities, and the primary insertion stability was recorded. To study the influence of implant geometry on implant stability with different levels of peri-implant bone loss, implants were inserted into acrylic resin blocks to mimic osseointegration, and different amounts of the peri-implant acrylic resin were removed. Measurements with both devices at each millimeter step yielded the threshold for the least detectable attachment loss. Results: The predominant factors influencing implant stability were bone quality and attachment loss. Implant type and length exerted some influence on implant stability values, while variations in implant diameter produced only minor alterations in the measurements. In simulations of peri-implant attachment loss, implant stability decreased more dramatically for the shorter and narrower implants. The inclusion of more variables in the analyses resulted in less focused measurements. Conclusions: The results of this study clearly show that the outcome of implant stability assessment depends on environmental factors such as bone quality and implant geometry. While the authors do not recommend the use of the Periotest or Osstell devices for a comparison of the stability of two individual implants, both should be useful to monitor the state of an individual implant over time. Int J Oral Maxillofac Implants 2011;26:347355

Key words: bone loss, damping capacity assessment, implant geometry, implant stability, peri-implantitis, resonance frequency analysis


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
Archive
Author Guidelines
About
Accepted Manuscripts
Submission Form
Submit
Reprints
Permission
Advertising
Quintessence Home
Terms of Use
Privacy Policy
About Us
Contact Us
Help