Magnetic resonance imaging artifacts produced by dental implants with different geometries
Lauren Bohner1,2, Norbert Meier3, Felix Gremse4
1Department of Cranio-Maxillofacial Surgery, Muenster University Hospital, Muenster, Germany.
Dento Maxillo Facial Radiology
|June 27, 2020
Summary
Titanium dental implants produce significantly higher MRI artifacts than zirconia implants. Implant geometry did not affect artifact patterns, suggesting zirconia is preferable for MRI compatibility.
Area of Science:
- Biomaterials Science
- Radiology
- Dental Implantology
Background:
- Dental implants are common, but their impact on Magnetic Resonance Imaging (MRI) artifacts is critical for diagnosis.
- Titanium and zirconia are widely used implant materials with different material properties.
Purpose of the Study:
- To compare the MRI artifact patterns generated by titanium and zirconia dental implants.
- To investigate the influence of implant geometry on MRI artifact characteristics.
Main Methods:
- Three titanium and three zirconia implants of varying dimensions were placed in porcine bone.
- Samples underwent MRI (3T) and Micro-CT scanning.
- Artifact distribution was quantified and statistically analyzed.
Main Results:
- Titanium implants generated significantly larger artifacts (2.57 ± 1.09 mm) compared to zirconia implants (0.37 ± 0.20 mm).
- Implant geometry (diameter, height) and measurement site did not significantly influence artifact appearance.
Conclusions:
- Zirconia dental implants exhibit lower MRI artifact levels than titanium implants.
- The artifact pattern is consistent across different dental implant geometries, favoring zirconia for MRI applications.
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