TMJ dislocation typically occurs after extreme mouth opening during activities like eating or yawning, and results in painful immobilization of the jaw in an open position. The condyle is displaced from the fossa in front of the articular eminence, and examination reveals spasming muscles of mastication as well as an inability to close the mouth and excessive salivation. Treatment focuses on manually relocating the condyle back into the fossa.

1. Clinical featuresofTMJ dislocationBYAmin Abusallamah

2. Clinical featuresTMJ dislocation may occur with trauma, but most often follows extreme opening of the mouth duringeating yawning, laughing, singing, vomiting, or dental treatment .

3. Symmetric mandibular dislocation is most common, but unilateral dislocation with the jaw deviating to the opposite side also can occur.OR

4. TMJ dislocation is painfuland frightening for the patient. Often associated with severe muscular spasms.

5. The patient is unable to close the mouth and there is excessive salivation .A depression may be noted in the preauricular area. Palpation of the TMJ reveals one or both of the condyles trapped in front of the articular eminence and spasm of the muscles of mastication.

6. Thank youReverence Contemporary Oral and Maxillofacial Surgery,4th EdPart …8 chapter …30 pages …682 - 683