https://www.toothiq.com - Describes common causes of dental abscesses - a tooth infection - including cracked teeth, leaking dental restorations and lateral root canals. The body's response to an abscess is illustrated, including increased blood flow to the tooth (hyperemia) to deliver immune-competent cells. Death of the pulp tissues (necrosis) is discussed. Abscess is described as a true dental emergency, requiring urgent care. Common treatments are discussed, including antibiotics, endodontic (root canal) therapy, and tooth removal (extraction).