How does a neurologist diagnose alveolar nerve injury?

History and exam: There would need to be a pattern of pain or numbness that fits the nerve distribution, or nerve twig. Likely, there would be history of injury to the region involved, as well. There is no absolute objective test for this nerve, but history, examination, and sometimes imaging will come pretty close.

Alveolar nerve: Typically by numbness in the teeth and gums and sometimes the tongue. This would be on the side of the injury.