Sometimes the pain is well localized, and the individual is able to determine the exact tooth from which the symptoms are originating, but not always.If the crack propagates into the pulp, irreversible pulpitis, pulpal necrosis and periapical periodontitis may develop, with the respective associated symptoms. Pathophysiology
CTS is typically characterized by pain when releasing biting pressure on an object. This is because when biting down the segments are usually moving apart and thereby reducing the pressure in the nerves in the dentin of the tooth. When the bite is released the "segments" snap back together sharply increasing the pressure in the intradentin nerves causing pain. The pain is often inconsistent, and frequently hard to reproduce. Pain associated with CTS has been reported to occur more commonly on biting, rather than on release of pressure after biting. If untreated, CTS can lead to severe pain, possible pulpal death, abscess, and even the loss of the tooth. If the fracture propagates into the pulp, this is termed a complete fracture, and pulpitis and pulp death may occur. If the crack propagates further into the root, a periodontal defect may develop, or even a vertical root fracture.According to one theory, the pain on biting is caused by the 2 fractured sections of the tooth moving independently of each other, triggering sudden movement of fluid within the dentinal tubules. This activates A-type nociceptors in the dentin-pulp complex, reported by the pulp-dentin complex as pain.
Traumatic alopecia is a cutaneous condition that results from the forceful pulling out of the scalp hair. See also
Traction alopecia
List of cutaneous conditions


== References ==