Association Between Frequency of Toothbrushing and Work‐Related Factors in the Japanese Population

ABSTRACT Objectives Work‐related factors have been associated with behavioural risk factors, but few studies have explored the association between work‐related factors and toothbrushing. This study assessed the association between work‐related factors and frequency of toothbrushing. Methods In this cross‐sectional study, an internet survey was conducted from November 24–29, 2021 in Japan. Full‐ and part‐time workers aged 20–69 years were selected from those registered with an online research company and included as participants. Participants were instructed to complete a questionnaire that surveyed their work‐related factors and oral health. Results Data from 1808 participants (896 male, 912 female) were analysed. Among them, 1463 (80.9%) participants brushed their teeth ≥ 2 times per day. Full‐time employees, daytime workers, and workers who were satisfied with their jobs were more likely to brush their teeth ≥ 2 times per day. Among participants with work‐related stress, those with job satisfaction were more likely to brush their teeth ≥ 2 times per day than those without (odds ratio: 1.66; 95% confidence interval: 1.06–2.58). This association was not observed among participants with no work‐related stress. Conclusion In this study, job satisfaction was associated with more frequent toothbrushing among Japanese workers, particularly those experiencing work‐related stress. Especially for stressed workers, strategies to reduce work‐related stress and improve job satisfaction may enhance oral health behaviours.