{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,15]],"date-time":"2026-05-15T12:03:21Z","timestamp":1778846601985,"version":"3.51.4"},"reference-count":47,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2022,9,4]],"date-time":"2022-09-04T00:00:00Z","timestamp":1662249600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/501100001691","name":"Japan Society for the Promotion of Science","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100001691","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100010681","name":"Research Institute for Humanity and Nature","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100010681","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["J of Periodontal Research"],"published-print":{"date-parts":[[2022,12]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Objective<\/jats:title><jats:p>To determine whether periodontal status is associated with oral function, including masticatory performance and occlusal force, among community\u2010dwelling older adults.<\/jats:p><\/jats:sec><jats:sec><jats:title>Background<\/jats:title><jats:p>Although a potential association between periodontal status and oral function has been reported, variations in the root surface area (RSA) of each tooth have not been considered.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>We used data from a population\u2010based study involving community\u2010dwelling older adults. The RSA with periodontal ligament (RSA\u2013PL), which quantifies the RSA attached to the periodontal ligament and alveolar bone, was calculated based on full\u2010mouth periodontal examination. Masticatory performance was assessed using spectrophotometric measurement of the color (a* value) of color\u2010changing chewing gum. The bilateral maximal occlusal force (MOF) was measured using a pressure\u2010sensitive sheet and dedicated software. The associations of the RSA\u2013PL, a quantitative marker of periodontal tissue support, with the a* value and MOF were assessed using linear regression models.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The analyses included data from 250 adults [60.8% women; age, mean (standard deviation) 82.5 (5.0) years]. On average, the study participants had an RSA\u2013PL of 26.3\u00a0cm<jats:sup>2<\/jats:sup>, a* value of 25.0, and an MOF value of 555.1\u00a0N. After adjustments for potential confounders, including dentition status, age, sex, dental visit regularity, smoking status, physical activity level, depressive symptoms, a history of stroke or diabetes mellitus, and body mass index, the RSA\u2013PL was found to be associated with the a* value [coefficient (per 1\u00a0cm<jats:sup>2<\/jats:sup> increase): 0.16, 95% confidence interval (CI) 0.10\u20130.22)] and MOF (coefficient: 9.2, 95% CI 5.3\u201313.1).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>This study demonstrated that greater amounts of remaining tooth\u2010supporting structures, indicated by higher RSA\u2013PL values, were associated with better masticatory performance and a higher occlusal force among community\u2010dwelling older adults.<\/jats:p><\/jats:sec>","DOI":"10.1111\/jre.13051","type":"journal-article","created":{"date-parts":[[2022,9,5]],"date-time":"2022-09-05T06:34:34Z","timestamp":1662359674000},"page":"1139-1147","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Periodontal status is associated with oral function in community\u2010dwelling older adults, independent of dentition status"],"prefix":"10.1111","volume":"57","author":[{"given":"Yui","family":"Ueno","sequence":"first","affiliation":[{"name":"Division of Oral Reconstruction and Rehabilitation Kyushu Dental University  Kitakyushu City Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5739-2936","authenticated-orcid":false,"given":"Masanori","family":"Iwasaki","sequence":"additional","affiliation":[{"name":"Tokyo Metropolitan Institute of Gerontology  Itabashi\u2010Ku 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