Radiology · single question
In periapical radiography, excessive vertical angulation of the beam produces:
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Correct answer: B. Foreshortening
- A. Elongation results from insufficient (too little) vertical angulation.
- B. Correct. Too much vertical angulation foreshortens the image (the tooth appears shorter than it is).
- C. Magnification relates to object-film/source distances, not vertical angulation.
- D. A cone-cut is a clear, unexposed area from misaligning the PID, not an angulation length error.