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Titanium Corrosion in Peri-Implantitis
Mailis D Soler1, Shu-Min Hsu1, Chaker Fares2
1Division of Prosthodontics, Department of Restorative Dental Sciences, College of Dentistry, University of Florida, Gainesville, FL 32610, USA.
Materials (Basel, Switzerland)
|December 5, 2020
Summary
Titanium particles were found in human tissue near dental implants with peri-implantitis. Failed implants showed smoother surfaces, indicating corrosion and material degradation.
Area of Science:
- Biomaterials Science
- Dental Implantology
- Materials Science
Background:
- Titanium (Ti) implants are susceptible to corrosion in the oral environment, particularly when exposed to bacteria.
- Peri-implantitis, an inflammatory condition, can compromise implant success and may involve material degradation.
Purpose of the Study:
- To investigate the presence of titanium particles in soft tissues surrounding peri-implantitis sites.
- To analyze the surface morphology and composition of failed titanium implants.
Main Methods:
- Tissue biopsies from peri-implantitis sites were processed and analyzed using scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDX).
- Failed titanium implants were also examined using SEM and EDX to assess surface changes.
- Titanium particle presence was quantified in soft tissue samples.
Main Results:
- Titanium particles were detected in 5 out of 8 biopsied soft tissue samples.
- SEM analysis revealed smoother surface morphologies on failed implants compared to a reference implant.
- EDX analysis indicated a decreased weight percentage of titanium on the surface of failed implants.
Conclusions:
- Titanium particles are present in soft tissues adjacent to failing dental implants with peri-implantitis.
- Corrosion and surface degradation occur on titanium implants, leading to particle release and altered surface morphology.
