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Evaluation of a nanometer roughness scale resorbable media-processed surface: a study in dogs
Charles Marin1, Rodrigo Granato, Estevam A Bonfante
1Department of Oral and Maxillofacial Surgery, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, RS, Brazil.
Clinical Oral Implants Research
|April 27, 2011
Summary
A novel experimental implant surface demonstrated superior biomechanical fixation compared to a control surface. While bone-to-implant contact (BIC) remained comparable, the enhanced fixation suggests improved bone mechanical properties around the experimental implants.
Area of Science:
- Biomaterials Science
- Orthopedic Research
- Dental Implantology
Background:
- Dental implant surface characteristics significantly influence osseointegration and biomechanical stability.
- Optimizing implant surface topography and chemistry is crucial for enhancing implant fixation and long-term success.
- Current dual acid-etched surfaces are well-established, but novel surface modifications are continuously explored.
Purpose of the Study:
- To compare the biomechanical fixation and bone-to-implant contact (BIC) of a novel experimental implant surface processed with resorbable blasting media to a control dual acid-etched surface.
- To evaluate the influence of time (2 and 4 weeks) on these parameters in a canine model.
Main Methods:
- Surface characterization using scanning electron microscopy (SEM), atomic force microscopy (AFM), and X-ray photoelectron spectroscopy (XPS).
- Bilateral implantation of experimental (n=24) and control (n=24) surfaces in canine proximal tibiae for 2 or 4 weeks.
- Biomechanical testing (torque) and histomorphometric evaluation including BIC and resistance to failure analysis.
Main Results:
- The experimental surface exhibited significantly higher surface texturing and elemental composition including calcium and phosphorus.
- No significant difference in bone-to-implant contact (BIC) was observed between the experimental and control surfaces or over time.
- Biomechanical testing revealed that both longer implantation times and the experimental surface significantly increased implant resistance to failure.
Conclusions:
- The experimental resorbable blasting media-processed surface enhances biomechanical fixation compared to the dual acid-etched control surface.
- Comparable BIC suggests that the improved fixation is related to enhanced bone mechanical properties around the experimental implants.
- This novel surface modification holds promise for improving the stability and success of dental implants.
