Intermittent pain in teeth is clinically common in two diseases: 1) trigeminal neuralgia; 2) pulpitis. Trigeminal neuralgia pain has a typical intermittent period, during which the patient does not have any pain, and once the pain starts to attack, the pain is very intense. There is no obvious decay in the teeth on clinical examination of trigeminal neuralgia, but there is often the presence of trigger points on the soft tissue, and the patient will often experience increased pain when touching the trigger points or brushing the teeth. There is also pulpitis, with acute pulpitis being more common. Acute pulpitis is characterized by spontaneous paroxysmal pain, with pain significantly aggravated at night, and pain is also felt between painful periods, but acute pulpitis does not have a clear trigger point. Which of the two diseases should be identified in the professional dentistry department.