The symptoms of toothache include sharp pain or dull pain in or around a tooth. The most common cause of a toothache is a dental cavity as a result of tooth decay. Dental cavities and toothache can be prevented by proper oral hygiene. Another common cause of toothache is gum disease. Toothache can also be a result of an injury or an abscess of the tooth. Toothache symptoms can be caused by a problem that does not originate from a tooth or the jaw. Symptoms of toothache can be mimicked by sinus infection, shingles, and other diseases.