When cavities begin to form, dull white areas may first appear on the tooth. In later stages, these areas may turn yellow, brown, or black. If the discoloration is accompanied by pain when eating sweets, sensitivity to hot and cold, or food getting stuck in the teeth, the likelihood of cavities may increase.
However, a definitive diagnosis cannot be made solely by looking at the image. This requires clinical examination and, if necessary, digital imaging techniques.