{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,3]],"date-time":"2026-07-03T10:14:13Z","timestamp":1783073653440,"version":"3.54.6"},"reference-count":23,"publisher":"MDPI AG","issue":"18","license":[{"start":{"date-parts":[[2022,9,19]],"date-time":"2022-09-19T00:00:00Z","timestamp":1663545600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"National Health and Medical Research Council (NHMRC: Australia)","award":["910557"],"award-info":[{"award-number":["910557"]}]},{"name":"National Health and Medical Research Council (NHMRC: Australia)","award":["R01 DE09588"],"award-info":[{"award-number":["R01 DE09588"]}]},{"name":"National Health and Medical Research Council (NHMRC: Australia)","award":["1011589"],"award-info":[{"award-number":["1011589"]}]},{"name":"U.S National Institute of Dental Research","award":["910557"],"award-info":[{"award-number":["910557"]}]},{"name":"U.S National Institute of Dental Research","award":["R01 DE09588"],"award-info":[{"award-number":["R01 DE09588"]}]},{"name":"U.S National Institute of Dental Research","award":["1011589"],"award-info":[{"award-number":["1011589"]}]},{"name":"NHMRC (Australia)","award":["910557"],"award-info":[{"award-number":["910557"]}]},{"name":"NHMRC (Australia)","award":["R01 DE09588"],"award-info":[{"award-number":["R01 DE09588"]}]},{"name":"NHMRC (Australia)","award":["1011589"],"award-info":[{"award-number":["1011589"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IJERPH"],"abstract":"<jats:p>Background: The study aimed to estimate and compare the incidence and progression of chronic periodontitis among two generations of older Australian adults. Methods: Data were from two population-based cohort studies of Australian older adults aged 60+ years South Australian Dental Longitudinal Studies (SADLS), SADLS I (1991\u20131992) and SADLS II (2013\u20132014). American Academy of Periodontology\/the U.S. Centres for Disease Control and Prevention (CDC\/AAP), and the 2018 European Federation of Periodontology classification (EFP\/AAP) case definitions were used to define and calculate the incidence and progression of chronic periodontitis. Multivariable Poisson regression models were used to estimate incidence risk ratios (IRRs) of periodontitis. Results: A total 567 and 201 dentate respondents had periodontal exams in SADLS I and II, respectively. The incidence rate was greater in SADLS II than in SADLS I, approximately 200 vs. 100\/1000 person years, respectively. Current smokers had more than two times higher IRRs, 2.38 (1.30\u20134.34) and 2.30 (1.24\u20134.26), than their non-smoking counterparts in the previous generation under the CDC\/AAP and EFP\/AAP, respectively. Conclusions: The most recent generation of older adults has greater incidence and progression of periodontitis than the previous generation. Being a current tobacco smoker was a significant risk factor for both the incidence and progression of periodontitis.<\/jats:p>","DOI":"10.3390\/ijerph191811824","type":"journal-article","created":{"date-parts":[[2022,9,19]],"date-time":"2022-09-19T21:47:27Z","timestamp":1663624047000},"page":"11824","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["A Longitudinal Study of Chronic Periodontitis in Two Cohorts of Community-Dwelling Elderly Australians"],"prefix":"10.3390","volume":"19","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4759-3918","authenticated-orcid":false,"given":"Xiangqun","family":"Ju","sequence":"first","affiliation":[{"name":"Australian Research Centre for Population Oral Health (ARCPOH), Adelaide Dental School, University of Adelaide, Adelaide 5000, Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jane","family":"Harford","sequence":"additional","affiliation":[{"name":"Australian Research Centre for Population Oral Health (ARCPOH), Adelaide Dental School, University of Adelaide, Adelaide 5000, Australia"},{"name":"College of Nursing and Health Sciences, Flinders University, Adelaide 5042, Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Liana","family":"Luzzi","sequence":"additional","affiliation":[{"name":"Australian Research Centre for Population Oral Health (ARCPOH), Adelaide Dental School, University of Adelaide, Adelaide 5000, Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gloria","family":"Mejia","sequence":"additional","affiliation":[{"name":"Australian Research Centre for Population Oral Health (ARCPOH), Adelaide Dental School, University of Adelaide, Adelaide 5000, Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lisa M.","family":"Jamieson","sequence":"additional","affiliation":[{"name":"Australian Research Centre for Population Oral Health (ARCPOH), Adelaide Dental School, University of Adelaide, Adelaide 5000, Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2022,9,19]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"380","DOI":"10.1177\/0022034517693566","article-title":"Global, Regional, and National Prevalence, Incidence, and Disability-Adjusted Life Years for Oral Conditions for 195 Countries, 1990\u20132015: A Systematic Analysis for the Global Burden of Diseases, Injuries, and Risk Factors","volume":"96","author":"Kassebaum","year":"2017","journal-title":"J. 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Periodontol."}],"container-title":["International Journal of Environmental Research and Public Health"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1660-4601\/19\/18\/11824\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T00:34:33Z","timestamp":1760142873000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1660-4601\/19\/18\/11824"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2022,9,19]]},"references-count":23,"journal-issue":{"issue":"18","published-online":{"date-parts":[[2022,9]]}},"alternative-id":["ijerph191811824"],"URL":"https:\/\/doi.org\/10.3390\/ijerph191811824","relation":{},"ISSN":["1660-4601"],"issn-type":[{"value":"1660-4601","type":"electronic"}],"subject":[],"published":{"date-parts":[[2022,9,19]]}}}