Kanehira Harukazu, Agariguchi Akinori, Kato Hisashi, Yoshimine Shigeki, Inoue Hiroshi
Department of Removable Prosthodontics and Occlusion, Osaka Dental University, Chuo-ku, Osaka, Japan.
Nihon Hotetsu Shika Gakkai Zasshi. 2008 Jul;52(3):375-80. doi: 10.2186/jjps.52.375.
To evaluate the causes of temporomandibular disorder (TMD) by examining the relationships between 3 major TMD symptoms, parafunction, and stress, a questionnaire survey was performed during dental examinations in corporations.
The survey was performed using 6 questions on the following topics: 1. Trismus; 2. Joint noise; 3. Pain; 4. Clenching in the daytime; 5. Nocturnal bruxism; and 6. Stress. There were 3,225 subjects, 2,809 males and 416 females and the mean age of the subjects was 40.12 years. The relationships between questions 1 to 5 and question 6 were examined by the chi-square test.
There were significant correlations (question 1, p = 0.001; questions 2-5, p < 0.001).
Clearly, there was an influence of psychological factors, such as stress, on TMD, and such factors were considered to play important roles in its etiology, progression, and treatment. The results of this study suggest that well-controlled studies of TMD are necessary.
通过研究颞下颌关节紊乱病（TMD）的3种主要症状、功能异常及压力之间的关系，评估TMD的病因，在企业牙科检查期间进行了问卷调查。
该调查使用了关于以下主题的6个问题：1. 牙关紧闭；2. 关节弹响；3. 疼痛；4. 日间紧咬牙；5. 夜间磨牙症；6. 压力。共有3225名受试者，其中男性2809名，女性416名，受试者的平均年龄为40.12岁。通过卡方检验研究问题1至5与问题6之间的关系。
存在显著相关性（问题1，p = 0.001；问题2 - 5，p < 0.001）。
显然，压力等心理因素对TMD有影响，并且这些因素被认为在其病因、进展和治疗中起重要作用。本研究结果表明，有必要对TMD进行严格控制的研究。
