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Association between stress and temporomandibular disorder
Harukazu Kanehira1, Akinori Agariguchi, Hisashi Kato
1Department of Removable Prosthodontics and Occlusion, Osaka Dental University, Chuo-ku, Osaka, Japan. kanehira@cc.osaka-dent.ac.jp
Nihon Hotetsu Shika Gakkai Zasshi
|August 6, 2008
Summary
Psychological stress significantly influences temporomandibular disorder (TMD) symptoms, including pain and joint issues. This study highlights the importance of stress management in TMD etiology and treatment.
Area of Science:
- Dental Research
- Psychosomatic Medicine
- Epidemiology
Background:
- Temporomandibular disorder (TMD) is a complex condition with multifactorial causes.
- Understanding the interplay between psychological factors and TMD symptoms is crucial for effective management.
Purpose of the Study:
- To investigate the relationship between key temporomandibular disorder (TMD) symptoms and psychological stress.
- To evaluate the role of parafunctional activities in the context of stress and TMD.
Main Methods:
- A questionnaire survey was administered to 3,225 corporate employees.
- The survey assessed TMD symptoms (trismus, joint noise, pain) and parafunctions (daytime clenching, nocturnal bruxism) in relation to stress levels.
- Chi-square tests were used to analyze the correlations between TMD symptoms/parafunctions and stress.
Main Results:
- Significant correlations were found between stress and all assessed TMD symptoms (p = 0.001 for trismus; p < 0.001 for joint noise, pain, clenching, and bruxism).
- These findings indicate a strong association between psychological stress and the manifestation of TMD.
Conclusions:
- Psychological factors, particularly stress, play a significant role in the etiology, progression, and treatment of TMD.
- Further well-controlled studies are warranted to elucidate the complex mechanisms underlying TMD and stress.
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