When the decay reaches the center of the tooth (the pulp), the resulting inflammation (pulpitis) produces a toothache.
The dentist begins by asking the patient specific questions about the toothache, including the types of foods that make the pain worse, whether the tooth is sensitive to temperature or biting, and whether the pain is worse at night.
Toothache Tree (Zanthoxylum) - A large family of trees and shrubs, in the main too tender for this country, the few hardy kinds coming mostly from China and Japan, with one of minor interest from N.
When a toothache is left untreated, a severe infection may develop and spread to the sinuses or jawbone, and eventually cause blood poisoning.
If there is fever, swelling, intense pain, or bleeding in addition to the toothache the dentist should be seen right away.