Which lesion is easy to detect radiographically?

 # Which lesion is easy to detect radiographically?

A. An incipient lesion 

B. One that crosses the dentinoenamel junction (DEJ) 

C. One confined to enamel 

D. One with enamel demineralization 

The correct answer is: B. One that crosses the dentinoenamel junction (DEJ)

Explanation:

Lesions that cross the DEJ are easier to detect radiographically because:

1. Density Difference: When the lesion progresses beyond the DEJ, the change in tissue density between enamel and dentin becomes more pronounced, making it visible on radiographs.
2. Dentin Involvement: Dentin is less mineralized than enamel, so demineralization in this layer appears more distinctly on radiographs.

Other options:

• A. An incipient lesion: These are confined to the outer enamel and are challenging to detect radiographically due to minimal density changes.
• C. One confined to enamel: These may be faint or undetectable on radiographs, especially if demineralization is minor.
• D. One with enamel demineralization: Early enamel demineralization is often too subtle for reliable radiographic detection.