involuntarily or unconsciously clenching or grinding the teeth, typically during sleep
例句
Remove the pathogenic factors of psychological therapy, occlusal adjustment, treatment and bruxism in the pathogenesis of systemic disease.除去致病因素心理治疗，调牙合，治疗与磨牙症发病有关的全身疾病等。
Bruxism is a disorder characterized by grinding and clenching of the teeth, companied with fasciculation of masticatory muscles in nonfunctional status.磨牙症是在非功能状态下咀嚼肌发生自发性收缩，使上下牙彼此磨动或紧咬的现象。
