例1 患者刘某,女性,26岁。因精神病发作时狂笑,致两侧下颌关节脱位,表现为前牙开(牙合),呈半张口位,流口水等。在精神病医院住院治疗一年零两个月,精神病症状消失后,但前牙开(牙合),半张口位,流口水等症状仍然存在。精神病院医生以“迟发性过动综合症”来解释这些症状。以后来我科就诊,确诊 Example 1 patient Liu, female, 26 years old. As a result of mental illness laughter, caused by bilateral mandibular joint dislocation, the performance of the anterior teeth open (occlusion), was half a mouth, drooling and so on. Hospitalized in psychiatric hospital for one year and two months, the symptoms of psychosis disappeared, but the anterior teeth open (occlusion), half mouth, drooling and other symptoms still exist. Psychiatric clinicians interpret these symptoms as “late-onset hyperactive syndrome.” After coming to our department, diagnosed