{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,28]],"date-time":"2026-08-28T02:33:04Z","timestamp":1787884384981,"version":"build-2784847793"},"reference-count":52,"publisher":"MDPI AG","issue":"22","license":[{"start":{"date-parts":[[2021,11,14]],"date-time":"2021-11-14T00:00:00Z","timestamp":1636848000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001691","name":"Japan Society for the Promotion of Science","doi-asserted-by":"publisher","award":["JP19K10438"],"award-info":[{"award-number":["JP19K10438"]}],"id":[{"id":"10.13039\/501100001691","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IJERPH"],"abstract":"<jats:p>No studies have measured the periodontal inflamed surface area in people with dementia, although periodontal disease is a major health issue in this group. This study aimed to determine the relationship between dementia severity and periodontal inflamed surface area. An interdisciplinary team, including a dentist and psychiatrist, conducted an in-home survey of older people living in the community. This cross-sectional study was designed as part of a larger cohort study. The interdisciplinary team visited 198 individuals with cognitive decline. We surveyed the clinical dementia rating, periodontal inflamed surface area, number of teeth, and other health issues. We used multiple linear regression analysis to assess the 75 people who were able to take part in all the visits. Number of teeth (Beta = 0.479, p &lt; 0.001), clinical dementia rating (Beta = 0.258, p = 0.013), and age (Beta = 0.250, p = 0.017) were independently associated with periodontal inflamed surface area after adjusting for biological sex, depression, diabetes, collagen disease, visual disorder, and osteoporosis medication. To make communities more dementia-friendly, we must protect older people with dementia from developing poor oral health, which may require home visits for dental assessment.<\/jats:p>","DOI":"10.3390\/ijerph182211961","type":"journal-article","created":{"date-parts":[[2021,11,14]],"date-time":"2021-11-14T20:48:36Z","timestamp":1636922916000},"page":"11961","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":9,"title":["Severity of Dementia Is Associated with Increased Periodontal Inflamed Surface Area: Home Visit Survey of People with Cognitive Decline Living in the Community"],"prefix":"10.3390","volume":"18","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6055-211X","authenticated-orcid":false,"given":"Ayako","family":"Edahiro","sequence":"first","affiliation":[{"name":"Research Team for Promoting Independence and Mental Health, Tokyo Metropolitan Institute of Gerontology, Tokyo 173-0015, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tsuyoshi","family":"Okamura","sequence":"additional","affiliation":[{"name":"Research Team for Promoting Independence and Mental Health, Tokyo Metropolitan Institute of Gerontology, Tokyo 173-0015, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yoshiko","family":"Motohashi","sequence":"additional","affiliation":[{"name":"Research Team for Promoting Independence and Mental Health, Tokyo Metropolitan Institute of Gerontology, Tokyo 173-0015, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chika","family":"Takahashi","sequence":"additional","affiliation":[{"name":"Research Team for Promoting Independence and Mental Health, Tokyo Metropolitan Institute of Gerontology, Tokyo 173-0015, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ayami","family":"Meguro","sequence":"additional","affiliation":[{"name":"Removable Prosthodontics, Nihon University Graduate School of Dentistry at Matsudo, Chiba 271-8587, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mika","family":"Sugiyama","sequence":"additional","affiliation":[{"name":"Research Team for Promoting Independence and Mental Health, Tokyo Metropolitan Institute of Gerontology, Tokyo 173-0015, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7989-3168","authenticated-orcid":false,"given":"Fumiko","family":"Miyamae","sequence":"additional","affiliation":[{"name":"Research Team for Promoting Independence and Mental Health, Tokyo Metropolitan Institute of Gerontology, Tokyo 173-0015, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tsutomu","family":"Taga","sequence":"additional","affiliation":[{"name":"Research Team for Promoting Independence and Mental Health, Tokyo Metropolitan Institute of Gerontology, Tokyo 173-0015, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chiaki","family":"Ura","sequence":"additional","affiliation":[{"name":"Research Team for Promoting Independence and Mental Health, Tokyo Metropolitan Institute of Gerontology, Tokyo 173-0015, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Riko","family":"Nakayama","sequence":"additional","affiliation":[{"name":"Department of Integrated Education and Science, Graduate School of Education, The University of Tokyo, Tokyo 113-8654, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mari","family":"Yamashita","sequence":"additional","affiliation":[{"name":"Research Team for Social Participation and Community Health, Tokyo Metropolitan Institute of Gerontology, Tokyo 173-0015, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shuichi","family":"Awata","sequence":"additional","affiliation":[{"name":"Research Team for Promoting Independence and Mental Health, Tokyo Metropolitan Institute of Gerontology, Tokyo 173-0015, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2021,11,14]]},"reference":[{"key":"ref_1","unstructured":"World Health Organization (2021, September 06). 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