Which of the following best describes the correct vertical direction of the central ray when using the bisecting technique?
A) 90 degrees to the long axes of the teeth
B) 90 degrees to the plane of the image receptor
C) 90 degrees to the long axes of the teeth and the plane of the image receptor
D) 90 degrees to the imaginary bisector

Question

Quizplus · Accepted Answer

The bisecting technique requires the central ray to be directed perpendicular to the imaginary bisector, which bisects the angle formed by the long axis of the tooth and the plane of the image receptor. This is the only option that includes the imaginary bisector.

Which of the Following Best Describes the Correct Vertical Direction