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Association between self-reported bruxism and anger and frustration
Simone Gouw1, Anton de Wijer1, Ewald M Bronkhorst2
1Department of Oral Function and Prosthetic Dentistry, College of Dental Sciences, Radboud University Medical Center, Nijmegen, The Netherlands.
Journal of Oral Rehabilitation
|October 10, 2018
Summary
This study found a small association between anger, frustration, and bruxism (teeth grinding) on a group level. However, individual experiences may show co-existence of these factors.
Area of Science:
- Psychology
- Dentistry
- Sleep Medicine
Background:
- Bruxism is linked to psychological factors, but its relationship with anger and frustration is understudied.
- Few studies have investigated the connection between bruxism and emotions like anger and frustration.
Purpose of the Study:
- To investigate the association between self-reported awake bruxism and sleep bruxism.
- To determine the relationship between bruxism and levels of anger and frustration.
Main Methods:
- A 28-day longitudinal observational study involving 55 healthy adults with possible bruxism.
- Participants used a personal logbook with daily diaries and weekly questionnaires, including validated Dutch versions.
- Data were analyzed using multiple regression models to assess bruxism, psychosocial, and lifestyle factors.
Main Results:
- A 1-unit increase in sleep bruxism (SB) correlated with a 0.03-unit increase in anger and 0.04-unit increase in frustration.
- Awake bruxism (AB) showed a 0.04-unit increase for anger and 0.03-unit increase for frustration.
- Individual differences were significant (random intercepts for anger and frustration), and the effects of anger and frustration on both SB and AB were not statistically significant on a group level.
Conclusions:
- The association between anger, frustration, and self-reported bruxism is minimal at the group level.
- Significant individual variability exists, suggesting that anger and frustration may co-exist with bruxism in specific cases.
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