A Radiograph of a Submentovertex Projection of the Cranium Reveals

Multiple Choice

A radiograph of a submentovertex projection of the cranium reveals that the mandibular mentum are projected into the ethmoid sinuses.What must be altered during the repeat exposure to produce a more diagnostic radiograph?

A) Increase the extension of the skull.
B) Increase the flexion of the skull.
C) Decrease the CR angulation.
D) None of the above; it is an acceptable image.