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Related Experiment Videos

Dental material artifacts on MR images.

D B Hinshaw1, B A Holshouser, H I Engstrom

  • 1Department of Radiation Sciences, Loma Linda University, Calif.

Radiology
|March 1, 1988
PubMed
Summary

Certain dental materials, like stainless steel orthodontic bands and posts, create artifacts in head and neck Magnetic Resonance (MR) imaging. Other common dental restorations do not interfere with MR imaging quality.

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Area of Science:

  • Radiology
  • Dental Materials Science
  • Medical Imaging

Background:

  • Magnetic Resonance (MR) imaging is crucial for diagnosing head and neck pathologies.
  • Dental materials can produce artifacts, obscuring anatomical details in MR imaging.
  • Understanding material-induced artifacts is vital for accurate diagnosis.

Purpose of the Study:

  • To assess the artifact production of various dental materials used in restorations.
  • To identify specific dental materials that interfere with head and neck MR imaging.

Main Methods:

  • Evaluation of artifact severity caused by different dental materials.
  • Comparative analysis of MR imaging artifacts from stainless steel, amalgam, gold alloy, aluminum, microfilled resin, and polyvinyl acrylics.

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Main Results:

  • Stainless steel components (orthodontic bands, posts/pins) generated significant artifacts.
  • Amalgam, gold alloy, aluminum, microfilled resin, and polyvinyl acrylics did not produce artifacts.
  • Artifacts from certain materials obscured normal anatomy in the lower midface.

Conclusions:

  • Stainless steel dental materials are a source of significant artifacts in MR imaging.
  • Non-metallic and non-ferrous dental materials are suitable for patients undergoing MR scans.
  • Awareness of artifact-producing materials can improve diagnostic accuracy in head and neck MR imaging.