Exam 3: Radiographic Appearance of Dental Materials and Foreign Objects

The endodontic filling materials gutta-percha and silver points cannot be distinguished radiographically.

What type of malignant tumor arises from an epithelial origin?

Which of these restorative materials will appear the most radiopaque on a dental radiograph?

Dilaceration occurs as an unnatural or sharp bend in the tooth root.

Which of these restorative materials will appear the most radiopaque on a dental radiograph?

Each of the following dental materials might not be imaged on a dental radiograph or may be only slightly visible EXCEPT one. Which one is the EXCEPTION?

What type of resorption appears as a radiolucent widening of the root canal?

Fusion occurs when a single tooth bud divides and forms two teeth.

Radiographs are helpful in revealing each of the following EXCEPT one. Which one is the EXCEPTION?

Resorption that follows a path from inside out, or a widening of the root canal of the tooth, is external resorption.