Which of these statements regarding the focal trough is FALSE?
A) Its shape varies from one manufacturer to another.
B) It is where structures will be imaged the sharpest.
C) It is two-dimensional.
D) It is used to determine where to position the dental arches.

Question

Quizplus · Accepted Answer

The focal trough, also known as the image layer or sharpness layer, is a three-dimensional curved zone in which structures are most clearly imaged in panoramic radiography. It is not two-dimensional; its three-dimensional shape accommodates the jaw's curvature.

Which of These Statements Regarding the Focal Trough Is FALSE