Question

When using rectangular collimation with the paralleling technique one must use a (an):

A) Long PID.
B) Short PID.
C) Round PID.
D) Open-ended PID.

Answer 1

When using rectangular collimation with the paralleling technique, one must use a Short PID (Position Indicating Device).

Step-by-step explanation:

When using rectangular collimation with the paralleling technique, one must use a Short PID (Position Indicating Device).

The paralleling technique is a method used in dental radiography to produce accurate and consistent images. Rectangular collimation refers to the use of a rectangular beam shape to limit the radiation exposure to the area of interest and reduce scatter radiation.

A Short PID is necessary for rectangular collimation because it allows for better control of the x-ray beam and restricts the radiation to a smaller area, reducing the chance of unnecessary radiation exposure to the patient.