A radiograph of a PA Caldwell projection reveals that the petrous ridges are projected into the lower one third of the maxillary sinuses.Which of the following modifications should be made during the repeat exposure to produce a more diagnostic image?
A) Increase the extension of the head and neck.
B) Decrease the extension of the head and neck.
C) Nothing; accept the initial radiograph.
D) Angle the CR 10° caudad.
Correct Answer:
Verified
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