嚼肌静息期时限和环境中紧张性刺激是两个与咀嚼功能不良有关的参数。在下颌功能不良的心理生理学理论中,紧张性刺激被认为是一个重要的发病因素。临床研究表明下颌功能不良的病人嚼肌静息期时限比正常人显著地延长。本文目的是研究环境中紧张性刺激和嚼肌静息期时限的关系。83名在紧张性刺激中有下颌功能不良史的牙科学生自愿参加实验,借助随机数表, The resting period of the chewing muscles and the stressful environment in the environment are two parameters that are related to masticatory dysfunction. In the psychophysical theory of mandibular dysfunction, tonic stimulation is considered as an important causative agent. Clinical studies have shown that the resting period of the chewing muscle in patients with mandibular dysfunction is significantly longer than in normal subjects. The purpose of this paper is to study the relationship between stressful conditions in the environment and the resting time of the chewing muscle. Eighty-three dental students who had a history of impaired mandibular dysfunction in voluntary stress tests participated in the experiment. Using random number tables,