Pierce C J, Chrisman K, Bennett M E, Close J M
Department of Behavioral Sciences, University of Pittsburgh, School of Dental Medicine, Pennsylvania 15261.
J Orofac Pain. 1995 Winter;9(1):51-6.
This study examined (1) the relationships between electromyographic-measured nocturnal bruxism, self-reported stress, and several personality variables, and (2) the relationship between belief in a stress-bruxism relationship and self-reported stress. One hundred adult bruxers completed a battery of personality questionnaires, indicated whether they believed in a stress-bruxism relationship, presented for a dental examination, and had dental impressions taken. Subsequently, electromyographic measurements of bruxing frequency and duration were recorded for fifteen consecutive nights. Prior to each night's measurements, subjects indicated their levels of stress for the immediately preceding 24 hours. No overall relationship was established between electromyographic measures and the personality variables nor between electromyographic measures and self-reported stress. Correlations between electromyographic measures and self-reported stress were statistically significant for eight individual subjects. Further, subjects with high levels of stress reported more anxiety, irritability, and depression, and less denial. Subjects who believed in a stress-bruxism relationship reported greater stress.
（1）通过肌电图测量的夜间磨牙症、自我报告的压力以及若干人格变量之间的关系；（2）对压力与磨牙症关系的信念和自我报告的压力之间的关系。一百名成年磨牙症患者完成了一系列人格问卷，表明他们是否相信压力与磨牙症之间存在关联，接受了牙科检查并取了牙模。随后，连续十五个晚上记录磨牙频率和持续时间的肌电图测量值。在每晚测量之前，受试者表明他们在前24小时内的压力水平。肌电图测量值与人格变量之间以及肌电图测量值与自我报告的压力之间均未建立总体关系。八名个体受试者的肌电图测量值与自我报告的压力之间的相关性具有统计学意义。此外，压力水平高的受试者报告有更多的焦虑、易怒和抑郁，以及更少的否认。相信压力与磨牙症关系的受试者报告的压力更大。
