咬紧牙和磨牙的口腔动作被称为磨牙症。还不知道造成这种行为的特殊原因。病因;按照弗罗伊德(Freud)精神分析学说,口腔是具有强烈情感性的器官。通过社交活动,各个人学会了采取可接受的方式表示他的不高兴。某些人选择了磨牙、咬颊、咬唇、咬物的口腔习惯,以满足受到阻挠的意欲和愿望。磨牙症可作为儿童的一个普通症状一直持续到成年,且相当稳定。延续很长时间的紧咬牙可引起肌肉疲劳和肌痉挛。久 Dental ache, which grit and molars, is called bruxism. There is no specific reason for such behavior. Etiology; According to Freud psychoanalysis, the mouth is an organ of strong emotion. Through social activities, everyone learns to adopt an acceptable way of expressing his unhappiness. Some people choose the oral habits of molars, cheeks, biting bites, biting things to satisfy the frustrated wishes and desires. Bruxism can be a common symptom of childhood until adulthood and is fairly stable. Tight bite that lasts for a long time can cause muscle fatigue and muscle spasms. Long