What is the term for regions of the skull where there is less bone or thin bony structures on a panoramic radiograph?
A) Artifact
B) Outline of soft tissue
C) Ghost image
D) Air space
D
Explanation: A) Air spaces are regions of the skull where there is less bone or thin bony structures.
B) Air spaces are regions of the skull where there is less bone or thin bony structures.
C) Air spaces are regions of the skull where there is less bone or thin bony structures.
D) Air spaces are regions of the skull where there is less bone or thin bony structures.
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