Which condition cannot be diagnosed using dental radiographs?

Tooth vitality refers to the health of the pulp inside a tooth and its ability to respond to stimuli, such as temperature changes. This condition cannot be diagnosed using dental radiographs because X-rays do not provide information about the functional status of the pulp or whether the tooth is alive. Radiographs can reveal certain structural issues, such as decay or the presence of a dental abscess, but they cannot indicate if the tooth pulp is vital or necrotic. For assessing tooth vitality, tests such as cold, heat, or electric pulp testing are necessary to evaluate the response of the pulp to stimuli directly.