- A variety of foreign bodies can produce focal radiopacities
- The appearance depends on the nature of foreign body, its density and its location.
Foreign bodies (focal)
Examples of common artefacts in panoramic images caused by jewellery or other objects.
Necklace, Nose piercing, Tong piercing, Lead apron, Hair clip.
Intraoral radiography: Examples of common artefacts caused by jewellery or spectacles.
Wire in the tongue.
A gun shot case (Courtesy of Prof. CJ Nortje, University of Stellenbosch, S. Africa).
Knife (Courtesy of Prof. CJ Nortje, University of Stellenbosch, S. Africa).