{
  "abstract": "Background: Periodontitis is a chronic inflammatory condition influenced by behavioral, systemic and socioeconomic factors, and its prevalence increases with age. Although cross-sectional studies suggest an association between short sleep duration and periodontitis, longitudinal evidence remains limited. This study aimed to examine the association between sleep duration and self-reported incident severe periodontitis using data from a nationwide prospective cohort.\n\nMethods: We conducted a prospective cohort study using longitudinal data from the 2023–2025 waves of the Japan COVID-19 and Society Internet Survey. Participants without self-reported severe periodontitis at baseline were followed for self-reported incident severe periodontitis. Short sleep duration was defined as <6 h per night. Cox proportional hazards models were used as the primary analysis, and generalized estimating equations were used as a secondary analysis.\n\nResults: Among 33,000 respondents to the 2023 survey, 8,144 individuals without self-reported severe periodontitis at baseline and with follow-up data were included in the study population. Short sleep duration was reported by 22.7% of participants and was associated with a higher risk of self-reported incident severe periodontitis (hazard ratio = 1.28, 95% confidence interval [CI]: 1.13–1.46). This association was consistent in the secondary analysis using repeated measures (odds ratio = 1.26, 95% CI: 1.09–1.46). Older age, lower income, diabetes, dyslipidaemia, depression and smoking were also associated with an increased risk.\n\nConclusion: Short sleep duration may be a modifiable risk factor for self-reported incident severe periodontitis in the general population. The present findings highlight the potential importance of sleep for the prevention of periodontitis.",
  "abstract_shown": true,
  "affiliations": [
    "Department of Preventive Dentistry, Division of Dentistry, Medical Development Field, Okayama University , ,",
    "Dental School, Okayama University , ,",
    "Department of Preventive Dentistry, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University , ,",
    "Division of Epidemiology, School of Public Health, Tohoku University Graduate School of Medicine , ,"
  ],
  "article_type": "research article",
  "arxiv": null,
  "author_total": 5,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Noriko Takeuchi"
    },
    {
      "affs": [
        1
      ],
      "name": "Kanon Itoi"
    },
    {
      "affs": [
        2
      ],
      "name": "Takayuki Maruyama"
    },
    {
      "affs": [
        3
      ],
      "name": "Takahiro Tabuchi"
    },
    {
      "affs": [
        2
      ],
      "name": "Daisuke Ekuni"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/3a6d8adya131a.bib",
  "cited_by": 0,
  "doi": "10.3389/fpubh.2026.1946230",
  "fulltext_url": "https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13661196/?tool=EBI",
  "id": "3a6d8adya131a",
  "issns": [
    "2296-2565"
  ],
  "landing_url": "https://europepmc.org/article/PMC/PMC13661196",
  "language": "eng",
  "licence": "CC-BY",
  "licence_label": "CC BY",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "openalex",
      "3506|Oral microbiology and periodontitis research"
    ]
  ],
  "openalex": "W7214961905",
  "pdf_url": "https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13661196/pdf/?tool=EBI",
  "pmcid": "PMC13661196",
  "pmid": null,
  "published": "2026-09-30",
  "publisher": "Frontiers Media SA",
  "ris": "https://research.draconitic.com/paper/3a6d8adya131a.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:20Z",
      "native_id": "PMC:PMC13661196",
      "source": "europepmc",
      "url": "https://europepmc.org/article/PMC/PMC13661196"
    },
    {
      "first_seen": "2026-10-30T12:20:22Z",
      "native_id": "10.3389/fpubh.2026.1946230",
      "source": "crossref",
      "url": "https://www.frontiersin.org/articles/10.3389/fpubh.2026.1946230/full"
    }
  ],
  "subjects": [
    {
      "field": "medicine",
      "origin": "issn:2296-2565",
      "subfield": "epidemiology-public-health"
    }
  ],
  "title": "Short sleep duration and incident self-reported severe periodontitis among Japanese adults: a nationwide prospective cohort study",
  "title_text": "Short sleep duration and incident self-reported severe periodontitis among Japanese adults: a nationwide prospective cohort study",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:20:22Z",
  "url": "https://research.draconitic.com/paper/3a6d8adya131a",
  "venue": "Frontiers in public health",
  "versions": []
}