日本補綴歯科学会雑誌
Online ISSN : 1883-177X
Print ISSN : 0389-5386
ISSN-L : 0389-5386
Original Articles
Association between Stress and Temporomandibular Disorder
Harukazu KanehiraAkinori AgariguchiHisashi KatoShigeki YoshimineHiroshi Inoue
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2008 年 52 巻 3 号 p. 375-380

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Purpose: 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.
Methods: 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.
Results: There were significant correlations (question 1, p=0.001; questions 2-5, p<0.001).
Conclusion: 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.

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© 2008 Japan Prosthodontic Society
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