Which symptom is an identifier of nonodontogenic toothache?

The identification of nonodontogenic toothache often involves symptoms that are not typical of dental origin. Spontaneous pain affecting multiple teeth is a key indicator, as it suggests a systemic or neurogenic issue rather than a localized dental problem.

Nonodontogenic toothaches frequently present with diffuse pain that can impact multiple regions of the mouth simultaneously, signaling a condition that doesn't originate from the dental structures themselves, such as sinus infections, migraines, or other referred pain syndromes.

In contrast, intense throbbing pain in a single tooth is more characteristic of odontogenic sources, often related to pulpitis or issues directly affecting a specific tooth. Quick, sharp hypersensitive responses typically represent acute reactions to stimuli which are often indicative of odontogenic pain as well. Localized pain that doesn't radiate might suggest a dental issue or a specific nerve involvement, pointing towards dental origin rather than a broader systemic process.

Thus, the symptom of spontaneous multiple tooth pain serves as a clear identifier for nonodontogenic toothache, highlighting its broader and less localized nature.