Pain in or near a tooth. Also called odontalgia. The most common cause of a toothache is a dental cavity. The second most common cause is gum disease. Toothache can be caused by a problem that does not originate from a tooth or the jaw.
A toothache, also known as odontalgia or, less frequently, as odontalgy, is an aching pain in or around a tooth. In most cases toothaches are caused by problems in the tooth or jaw, such as cavities, gum disease, the emergence of wisdom teeth, a cracked tooth, jaw disease, or exposed tooth root. Causes of a toothache may also be a symptom of diseases of the heart, such as angina or a myocardial infarction, due to referred pain.