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Graetz, Christian; Plaumann, Anna; Schlattmann, Peter; Kahl, Maren; Springer, Claudia; Sälzer, Sonja; Gomer, Konstantin; Dörfer, Christof; Schwendicke, Falk

Long‐term tooth retention in chronic periodontitis – results after 18 years of a conservative periodontal treatment regimen in a university setting

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  • Media type: E-Article
  • Title: Long‐term tooth retention in chronic periodontitis – results after 18 years of a conservative periodontal treatment regimen in a university setting
  • Contributor: Graetz, Christian; Plaumann, Anna; Schlattmann, Peter; Kahl, Maren; Springer, Claudia; Sälzer, Sonja; Gomer, Konstantin; Dörfer, Christof; Schwendicke, Falk
  • imprint: Wiley, 2017
  • Published in: Journal of Clinical Periodontology
  • Language: English
  • DOI: 10.1111/jcpe.12680
  • ISSN: 0303-6979; 1600-051X
  • Keywords: Periodontics
  • Origination:
  • Footnote:
  • Description: <jats:title>Abstract</jats:title><jats:sec><jats:title>Aim</jats:title><jats:p>The longitudinal study assessed the risk of tooth loss under a non‐regenerative treatment regimen and aimed to identify prognostic factors for tooth loss.</jats:p></jats:sec><jats:sec><jats:title>Methods</jats:title><jats:p>Three hundred and fifteen patients (8009 teeth) were examined before (T0) and after active periodontal therapy (<jats:styled-content style="fixed-case">APT</jats:styled-content>, T1) as well as after (mean ± <jats:styled-content style="fixed-case">SD</jats:styled-content>) 18 ± 6 years of supportive periodontal therapy (<jats:styled-content style="fixed-case">SPT</jats:styled-content>, T2). Descriptive statistics and a Cox proportional hazards shared‐frailty model were applied.</jats:p></jats:sec><jats:sec><jats:title>Results</jats:title><jats:p>Overall, 351 and 816 teeth were lost during <jats:styled-content style="fixed-case">APT</jats:styled-content> and <jats:styled-content style="fixed-case">SPT</jats:styled-content>, respectively, with 0.15 ± 0.17 teeth being lost per patient and year. Seventy‐two percentage patients lost 0–3, 24% 4–9 and 4% ≥10 teeth. The proportion of teeth with probing‐pocket depths (<jats:styled-content style="fixed-case">PPD</jats:styled-content>) &gt;6 mm was 17.2% (T0), 1.6% (T1) and remained stable at 1.7% up to T2. Tooth loss during <jats:styled-content style="fixed-case">SPT</jats:styled-content> was significantly increased in older patients [<jats:styled-content style="fixed-case">HR</jats:styled-content> (95% <jats:styled-content style="fixed-case">CI</jats:styled-content>): 1.04 (1.01–1.07) per year] and smokers [2.62 (1.34–5.14)], with each mm of <jats:styled-content style="fixed-case">PPD</jats:styled-content> [1.35 (1.17–1.56)], in multirooted compared with single‐rooted teeth [1.86 (1.36–2.56)] and teeth with bone loss [BL; <jats:styled-content style="fixed-case">HR</jats:styled-content> up to 23.6 (12.1–45.6) for BL &gt; 70%].</jats:p></jats:sec><jats:sec><jats:title>Conclusion</jats:title><jats:p>The risk of tooth loss was generally low under the provided non‐regenerative treatment regimen; a minority of patients were responsible for the majority of teeth lost during <jats:styled-content style="fixed-case">SPT</jats:styled-content>.</jats:p></jats:sec>