A decrease in vertical angulation will generally cause the image to what?

A decrease in vertical angulation will generally cause the image to what?

• A. Foreshorten
• B. Distort
• C. Elongate
• D. No Change

Answer: (C)

Vertical angulation controls how the tooth is projected onto the film. When you decrease the vertical angulation, the X-ray beam becomes less steep relative to the tooth’s long axis, so the tooth’s image on the film lengthens. This elongation happens because the projection runs more along the length of the tooth, stretching its appearance on the receptor. If you tilt the beam more steeply (increase angulation), you would see foreshortening, where the image appears shorter than the actual tooth. Distortion is a broader misrepresentation of size or shape, and no change would mean the beam is aligned correctly, yielding a true-length image.

Vertical angulation controls how the tooth is projected onto the film. When you decrease the vertical angulation, the X-ray beam becomes less steep relative to the tooth’s long axis, so the tooth’s image on the film lengthens. This elongation happens because the projection runs more along the length of the tooth, stretching its appearance on the receptor. If you tilt the beam more steeply (increase angulation), you would see foreshortening, where the image appears shorter than the actual tooth. Distortion is a broader misrepresentation of size or shape, and no change would mean the beam is aligned correctly, yielding a true-length image.