What is a common symptom of tooth decay?

Tooth decay is a progressive condition that can manifest in various ways, and the correct answer indicates that several symptoms can occur simultaneously.

White patches on gums can indicate early demineralization of the tooth surface, often related to decay. Increased sensitivity to hot and cold is a common symptom associated with decay, especially as the protective enamel is compromised, exposing the underlying dentin layer, which contains nerve endings that react to temperature changes. Pain when chewing can occur as a result of decay advancing into the deeper layers of the tooth, potentially affecting the pulp and leading to discomfort during mastication.

Since all these symptoms can present as a result of tooth decay, the option that encompasses all of them is the most comprehensive choice, highlighting the multifaceted nature of the condition and its various presentations.