Possible sleep and awake bruxism, chronotype profile and TMD symptoms among Turkish dental students


KIRARSLAN KARAGÖZ Ö., YILDIRIM B., TEKELİ ŞİMŞEK A., KOCA C. G., İĞNECİ M.

Chronobiology International, vol.38, no.9, pp.1367-1374, 2021 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 38 Issue: 9
  • Publication Date: 2021
  • Doi Number: 10.1080/07420528.2021.1931279
  • Journal Name: Chronobiology International
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, BIOSIS, CAB Abstracts, EMBASE, Environment Index, MEDLINE, Psycinfo, SportDiscus, Veterinary Science Database
  • Page Numbers: pp.1367-1374
  • Keywords: Bruxism, circadian rhythm, circadian rhythm, facial pain, sleep, sleep bruxism, sleep disorders, temporomandibular joint disorder
  • Uşak University Affiliated: Yes

Abstract

It was hypothesized that an individual’s chronotype profile has an effect on the performance of work or study tasks. Dental students have to cope with both academic and clinical workloads, and the latter requires extra concentration. The first aim was to evaluate the association of sleep bruxism (SB) and awake bruxism (AB) with sleep related items, temporomandibular disorder (TMD) complaints, and chronotype profile; the second aim was to evaluate the association between complaints of TMD and chronotype profile among dental students. The present cross-sectional descriptive study involved 218 dental students whose ages ranged between 18 and 30 years. In order to gather data, students were required to respond to a questionnaire, which aimed to evaluate possible SB and possible AB occurrence and demographics, sleep-related items and complaints of TMD. For the assessment of the chronotype profile, the morningness-eveningness questionnaire (MEQ) was used. The chi-square test, the Mann–Whitney U test, and t-test analyses were performed to evaluate the factors associated with SB, AB and chronotype profile. The frequency of self-reported SB was 25.2% and AB was 28.9%. The prevalence in the eveningness profile who reported possible AB was 45.3%, while it was 24.2% in intermediate individuals and 18.8% in the morningness profile. An association was also found between possible AB and eveningness chronotype profile (p = .009). No association was found between other temporomandibular joint (TMJ) pain and noise and chronotype profiles (p > .05). An association was found between possible AB and eveningness chronotype profile but no association was found between possible SB and chronotype profile. Moreover, complaint of TMD (face, head, neck pain) was observed particularly in students with an eveningness profile.