Interrelationships between distinct circadian manifestations of possible bruxism,perceived stress,chronotype and social jetlag in a population of undergraduate students |
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Authors: | Laurynas Jokubauskas Au?ra Baltru?aityt? Gaivil? Pilei?ikien? Gediminas ?ekonis |
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Institution: | 1. Department of Prosthodontics, Faculty of Odontology, Lithuanian University of Health Sciences, Kaunas, Lithuanialaurynas.jokubauskas@fc.lsmuni.lt;3. Department of Prosthodontics, Faculty of Odontology, Lithuanian University of Health Sciences, Kaunas, Lithuania |
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Abstract: | ABSTRACTThis study investigates the recently hypothesized association between distinct circadian manifestations of possible bruxism in subjects with different chronotype profiles, social jetlag and levels of perceived stress. A cross-sectional study was performed by surveying dental students’ of Lithuanian University of Health Sciences. A survey instrument was designed and pilot tested for reliability and validity prior to full-scale administration. The instrument consisted of four sections: socio-demographic questions, bruxism-related items, the Perceived Stress Scale and the Munich ChronoType Questionnaire. The study included 228 students (82.5% females; mean age 22.67 ± 2.27). Awake grinding was significantly associated with later chronotype values (p = 0,039). Despite the lack of significance, binary regression models demonstrated that students with later chronotypes report higher rates of possible bruxism, especially as far as awake grinding (p = .170; OR = 1.89) and sleep grinding (p = .140; OR = 1.60) are concerned. There were no significant associations between perceived stress, social jetlag and bruxism. The scores of perceived stress did not correlate with chronotype values, although a high positive correlation was found between chronotype and social jetlag (r = 0.516, p = .000). It can be concluded that later chronotypes increase the odds for self-reported bruxism, and are significantly associated with higher rates of awake grinding and social jetlag. No interrelationships were found between perceived stress, possible bruxism and social jetlag. |
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Keywords: | Bruxism chronotype psychological stress circadian rhythm sleep disorder students |
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