Question

If the size #2 film sensor is being used, the anterior films are in the position and the posterior films/sensors are in the position.

a) Size #2 film sensors are not suitable for anterior views.
b) Parallel, paralleling technique; perpendicular, paralleling technique.
c) Parallel, bisecting technique; perpendicular, paralleling technique.
d) Perpendicular, bisecting technique; parallel, paralleling technique.

Answer 1

The correct technique for using size #2 film sensors is a perpendicular, bisecting technique for anterior views and a parallel, paralleling technique for posterior views.

Step-by-step explanation:

The correct answer is d) Perpendicular, bisecting technique; parallel, paralleling technique.

When the size #2 film sensor is being used, the anterior films are taken with the film sensor in a perpendicular, bisecting technique. This means that the film sensor is positioned at a right angle to the long axis of the tooth, bisecting the angle formed by the long axis of the tooth and the film sensor.

On the other hand, the posterior films or sensors are taken with the film sensor in a parallel, paralleling technique. This means that the film sensor is positioned parallel to the long axis of the tooth, creating a parallel relationship between the tooth, the film sensor, and the central beam of X-rays.