A panoramic radiograph shows a flattened, slightly reversed occlusal plane, and the radiopaque hard palate is superimposed on the roots of the maxillary teeth. What positioning error is most likely?
- Correct answer
Chin tipped too far up
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Chin tipped too far down
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Patient positioned too far forward
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Head rotated to one side
This question is one of 15 in AFK practice: Oral medicine, pathology and radiology. Test yourself on all of them.
Practice quiz FlashcardsExplanations
Raising the chin flattens or reverses the curve of the occlusal plane and projects the hard palate over the maxillary root apices. Tipping the chin down exaggerates the upward curve of the occlusal plane (a "smile") instead.
Source: White and Pharoah's Oral Radiology — oneguy
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