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Metal elements in tissue with dental peri-implantitis: a pilot study
Tobias Fretwurst1, Guenter Buzanich2, Susanne Nahles3
1Department of Oral and Craniomaxillofacial Surgery, Center for Dental Medicine, University Medical Center Freiburg, Freiburg, Germany.
Clinical Oral Implants Research
|October 29, 2015
Summary
Titanium and iron were detected in tissues surrounding dental implants with peri-implantitis. This suggests a potential role for these metal elements in the condition
Area of Science:
- Biomaterials Science
- Dental Implantology
- Immunology
Background:
- Peri-implantitis is a complex condition affecting tissues around dental implants.
- The contribution of metal elements to peri-implantitis etiology remains uncertain.
Purpose of the Study:
- To investigate the presence of metal elements in bone and mucosal tissues of patients with peri-implantitis.
- To explore the association between metal elements and inflammatory responses in peri-implantitis.
Main Methods:
- Prospective pilot study analyzing bone and soft tissue samples from 12 patients undergoing implant explantation.
- Synchrotron radiation X-ray fluorescence spectroscopy (SRXRF) and polarized light microscopy (PLM) were used to detect elements (Ca, P, Ti, Fe) and metal particles.
- Histologic analysis identified macrophages and lymphocytes.
Main Results:
- Titanium (Ti) and Iron (Fe) were detected in 75% of analyzed peri-implantitis tissue samples.
- Metal particles were observed in peri-implant soft tissues.
- Increased titanium concentrations correlated with lymphocyte presence, while metal particles were associated with M1 macrophages.
Conclusions:
- Titanium and Iron elements are present in peri-implant tissues affected by peri-implantitis.
- Further research is needed to elucidate the specific immune responses triggered by metal elements and particles in dental peri-implant tissues.
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