抄録
We experienced 4 patients with hysteria, who chiefly complained of inability to close their mouths. All these patients were women. The condition should be differentiated from luxation of the temporomandibular joint. Some of our patients had been treated under the diagnosis of luxation of the temporomandibular joint in other hospitals. Open mouth in hysteria seems to be a vastige of a defense mechanism in ancient peoples, and the condition is considered to be a way to expressing aggressiveness.
