Non-cavitated carious lesions in enamel are commonly described as which of the following?

• A. White spot lesions
• B. Dentin caries
• C. Pulpal inflammation
• D. Root caries

Answer: (A)

The main idea here is recognizing how early enamel caries appear when the surface hasn’t cavitated yet. Non-cavitated enamel lesions show up as white spot lesions—chalky, opaque areas on the enamel that reflect subsurface demineralization while the surface layer remains intact. This is why “white spot lesions” is the best description: it captures the appearance and the fact that the lesion hasn’t breached the enamel surface, keeping it potentially reversible with remineralization strategies like fluoride, good plaque control, and dietary management.

Dentin caries implies involvement of dentin (often with cavitation), pulpal inflammation is a consequence rather than a lesion type on enamel, and root caries occurs on exposed root surfaces—none of these describe the enamel non-cavitated stage.