Digital imaging allows radiographs taken at different times to be compared to highlight differences.

• A. Digital imaging cannot show changes over time.
• B. Digital imaging is only used for single-time imaging.
• C. Digital imaging enables comparisons of radiographs over time to highlight differences.
• D. Digital imaging eliminates the need for follow-up imaging.

Answer: (C)

Digital imaging enables longitudinal assessment by storing radiographs from different visits for the same patient and allowing direct comparison. You can display images side by side or align them, then use brightness/contrast adjustments, zoom, and measurement tools to highlight subtle differences in bone levels, lesions, or restoration margins over time. This capability helps you monitor progression, healing, or response to treatment and makes changes visible that might not be obvious on a single image. It’s not limited to a one-time capture, and follow-up imaging may still be needed based on clinical indications.