Related Experiment Video
Updated: Jun 25, 2026
11:51
An Improved Mechanical Testing Method to Assess Bone-implant Anchorage
Published on: February 10, 2014
Biomechanical comparison of different surface modifications for dental implants
Stephen J Ferguson1, Jens D Langhoff, Katrin Voelter
1Institute for Surgical Technology and Biomechanics, University of Bern, Switzerland. stephen.ferguson@artorg.unibe.ch
The International Journal of Oral & Maxillofacial Implants
|February 17, 2009
Summary
Dental implant surface treatments significantly impact osseointegration. Bisphosphonate or collagen coatings enhanced early bone formation and implant stability compared to standard titanium or zirconia surfaces.
Area of Science:
- Biomaterials Science
- Dental Implantology
- Tissue Engineering
Background:
- Primary implant stability is crucial for immediate load bearing in dental restorations.
- Implant surface characteristics play a vital role in osseointegration and mechanical stability.
- Evaluating novel surface modifications is essential for improving dental implant outcomes.
Purpose of the Study:
- To compare the osseointegration of dental implants with identical geometry but diverse surface treatments.
- To assess the biomechanical and microtomographic performance of various implant surface modifications.
- To identify surface treatments that enhance early peri-implant bone formation and stability.
Main Methods:
- In vivo study utilizing a sheep pelvic model with six distinct implant surface treatments.
- Evaluation of peri-implant bone density and removal torque at 2, 4, and 8 weeks post-implantation.
- Tested surfaces included sandblasted/acid-etched titanium (Ti), zirconia, Ti with calcium phosphate (CaP), anodic plasma-chemical (APC) treatment, bisphosphonate (Bisphos), and collagen with chondroitin sulfate (CS).
Main Results:
- All implants demonstrated successful osseointegration without significant differences in bone density across groups.
- After 8 weeks, implants with Ti, Ti + CaP, Ti + Bisphos, and Ti + collagen + CS coatings exhibited significantly higher removal torque.
- Zirconia and Ti + APC surfaces showed lower removal torque compared to enhanced titanium surfaces.
Conclusions:
- Standard sandblasted/acid-etched titanium remains a reliable reference for dental implant surfaces.
- Functional surface modifications, particularly bisphosphonate and collagen coatings, show promise in enhancing early osseointegration.
- Further research is warranted to explore the potential of these advanced surface treatments in clinical dental implant applications.
