Medical Definition of ODONTOLOGY. 1. : a science dealing with the teeth, their structure and development, and their diseases.2. : forensic odontology. â odonÂ·toÂ·logÂ·iÂ·cal \-Ëdaent-ËdÃ¤nt-Él-Ëaej-ËÃ¤j\ i. kÉl adjective. : a science dealing with the teeth, their structure and development, and their diseases. 2. : forensic odontology.
1 See a doctor if canker sores are accompanied by fever, last more than three weeks, or the affected individual has difficulty swallowing.  Multiple factors may cause canker sores, including injury to the mouth, acidic or spicy foods, vitamin deficiencies, hormones, stress, or autoimmune disorders.
Simply stated, their cause is unknown; however, common canker sore triggers may include: 1  Stress. 2  Immune deficiencies. 3  Illness or infection.  Gastrointestinal 1  disease. Tissue manipulation â including prophylactic dental and gum cleanings and overzealous tooth brushing.  Tissue injury â for example, biting the inside of the mouth.