A radiograph of a lateral projection of the cranium reveals that the orbital roofs (plates) are not superimposed-one is slightly superior to the other.Which of the following positioning errors led to this radiographic outcome?

Question

Quizplus · Accepted Answer

The fact that the orbital roofs are not superimposed indicates that there is a tilt on the image. This means that the CR was not perpendicular to the IR, causing one of the orbital roofs to be slightly superior to the other. Rotation would have resulted in uneven appearance of the face and skull. Excessive flexion or extension would have caused distortion in the overall shape of the skull.

A Radiograph of a Lateral Projection of the Cranium Reveals