{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,1]],"date-time":"2026-09-01T02:33:38Z","timestamp":1788230018723,"version":"build-2803163510"},"reference-count":47,"publisher":"Wiley","issue":"7","license":[{"start":{"date-parts":[[2014,5,26]],"date-time":"2014-05-26T00:00:00Z","timestamp":1401062400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"name":"Clinical Research Foundation (CRF) for the Promotion of Oral Health, Brienz, Switzerland"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J Clinic Periodontology"],"published-print":{"date-parts":[[2014,7]]},"abstract":"Abstract<\/jats:title>Aim<\/jats:title>To investigate risk factors for the loss of multi\u2010rooted teeth (MRT<\/jats:styled-content>) in subjects treated for periodontitis and enrolled in supportive periodontal therapy (SPT<\/jats:styled-content>).<\/jats:p><\/jats:sec>Material and Methods<\/jats:title>A total of 172 subjects were examined before (T0) and after active periodontal therapy (APT<\/jats:styled-content>)(T1) and following a mean of 11.5\u00a0\u00b1\u00a05.2 (SD<\/jats:styled-content>) years of SPT<\/jats:styled-content> (T2). The association of risk factors with loss of MRT<\/jats:styled-content> was analysed with multilevel logistic regression. The tooth was the unit of analysis.<\/jats:p><\/jats:sec>Results<\/jats:title>Furcation involvement (FI<\/jats:styled-content>)\u00a0=\u00a01 before APT<\/jats:styled-content> was not a risk factor for tooth loss compared with FI<\/jats:styled-content>\u00a0=\u00a00 (p\u00a0<\/jats:italic>=\u00a00.37). Between T0 and T2, MRT<\/jats:styled-content> with FI<\/jats:styled-content>\u00a0=\u00a02 (OR<\/jats:styled-content>: 2.92, 95% CI<\/jats:styled-content>: 1.68, 5.06, p\u00a0<\/jats:italic>=\u00a00.0001) and FI<\/jats:styled-content>\u00a0=\u00a03 (OR<\/jats:styled-content>: 6.85, 95% CI<\/jats:styled-content>: 3.40, 13.83, p\u00a0<\/jats:italic><\u00a00.0001) were at a significantly higher risk to be lost compared with those with FI<\/jats:styled-content>\u00a0=\u00a00. During SPT<\/jats:styled-content>, smokers lost significantly more MRT<\/jats:styled-content> compared with non\u2010smokers (OR<\/jats:styled-content>: 2.37, 95% CI<\/jats:styled-content>: 1.05, 5.35, p\u00a0<\/jats:italic>=\u00a00.04). Non\u2010smoking and compliant subjects with FI<\/jats:styled-content>\u00a0=\u00a00\/1 at T1 lost significantly less MRT<\/jats:styled-content> during SPT<\/jats:styled-content> compared with non\u2010compliant smokers with FI<\/jats:styled-content>\u00a0=\u00a02 (OR<\/jats:styled-content>: 10.11, 95% CI<\/jats:styled-content>: 2.91, 35.11, p\u00a0<\/jats:italic><\u00a00.0001) and FI<\/jats:styled-content>\u00a0=\u00a03 (OR<\/jats:styled-content>: 17.18, 95% CI<\/jats:styled-content>: 4.98, 59.28, p\u00a0<\/jats:italic><\u00a00.0001) respectively.<\/jats:p><\/jats:sec>Conclusions<\/jats:title>FI<\/jats:styled-content>\u00a0=\u00a01 was not a risk factor for tooth loss compared with FI<\/jats:styled-content>\u00a0=\u00a00. FI<\/jats:styled-content>\u00a0=\u00a02\/3, smoking and lack of compliance with regular SPT<\/jats:styled-content> represented risk factors for the loss of MRT<\/jats:styled-content> in subjects treated for periodontitis.<\/jats:p><\/jats:sec>","DOI":"10.1111\/jcpe.12266","type":"journal-article","created":{"date-parts":[[2014,4,26]],"date-time":"2014-04-26T03:16:40Z","timestamp":1398482200000},"page":"701-707","source":"Crossref","is-referenced-by-count":139,"title":["Risk factors associated with the longevity of multi\u2010rooted teeth. 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