Dislocation of a gnathic joint - shift of an articulate head of a mandible.

Etiology. Strong disclosing of a mouth (at meal, cry, a yawning, an odontectomy, intubation of a stomach, an intubation, etc.), a trauma.

The pathogenesis is bound to a stretching or break of an articulate capsule. The congenital relaxation of ligaments matters. Distinguish dislocations full and incomplete (subluxation) forward, back, unilateral and bilateral. The forward dislocation, described a pain, impossibility to close a mouth, difficulty of speech, a hypersalivation is typical. At a bilateral dislocation the mouth is opened widely, at unilateral the chin is displaced in the healthy party. The articulate head ahead of a joint is to the touch taped; At a posterior dislocation the head is behind from an articulate fossa.

The forecast favorable.

Prophylaxis consists in bracing a chin at interventions.