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Gortschakow, J.* ; Borof, K.* ; Sasunna, D.* ; Kuhr, K.* ; Aarabi, G.* ; Baumeister, S.E.* ; Ciardo, A.* ; Greiser, K.H.* ; Hagenfeld, D.* ; Hertrampf, K.* ; Kim, T.S.* ; Kühnisch, J.* ; Pischon, T.* ; Reckelkamm, S.L.* ; Samietz, S.* ; Wojciechowsky, M.* ; Alselwi, A. ; Kemmling, Y.* ; Krist, L.* ; Leitzmann, M.* ; Meinke-Franze, C.* ; Mikolajczyk, R.* ; Obi, N.* ; Pickford, R. ; Pischon, N.* ; Rathmann, W.* ; Schulze, M.B.* ; Schipf, S.* ; Schmidt, B.* ; Willich, S.N.* ; Rach, S.* ; Jordan, A.R.* ; Völzke, H.* ; Kocher, T.* ; Kanzow, P.* ; Welk, A.* ; Rupf, S.* ; Holtfreter, B.*

Regional disparities in the prevalence of probing depths and tooth loss in Germany-results from the German National Cohort (NAKO).

J. Clin. Periodontol., DOI: 10.1111/jcpe.70201 (2026)
Publ. Version/Full Text Research data DOI PMC
Open Access Hybrid
Creative Commons Lizenzvertrag
AIM: To evaluate regional disparities in the prevalence, severity and extent of probing depths (PDs) as well as tooth loss in German adults aged 19-74, using data from the baseline study of the German National Cohort (NAKO; 2014-2019). METHODS: Dental examinations were recorded at two levels: Level 1 (18/18 centres; N = 184,871; tooth counts including third molars and dental interview) and Level 2 (8/18 centres, not geographically representative; N = 18,389; recording of PDs). We evaluated differences by sex, age and study region. All data were survey-weighted. For individuals aged 65-74, we supplemented tooth loss data from the Fifth German Oral Health Study and the Study of Health in Pomerania. RESULTS: Among Level 1 participants, the prevalence of edentulism was 1.7% (95% confidence interval: 1.6-1.9). The average mean PD was 1.89 mm (1.87-1.91). Both edentulism and PDs increased with increasing age. There were clear regional disparities, with the lowest prevalence of both in Augsburg/Regensburg in the south (1.3% and 1.64 mm) and the highest in Neubrandenburg in the north-east (2.3% and 2.31 mm). CONCLUSION: Clear regional disparities emerged. In light of demographic changes, these results highlight the importance of incorporating region-specific oral health burdens into future healthcare planning and treatment concepts.
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Publication type Article: Journal article
Document type Scientific Article
Keywords Cohort Study ; German National Cohort ; Nako ; Edentulism ; Periodontitis ; Prevalence ; Regional Disparities; Periodontitis; Health
ISSN (print) / ISBN 0303-6979
e-ISSN 1600-051X
Journal Journal of Clinical Periodontology
Publisher Wiley
Publishing Place 111 River St, Hoboken 07030-5774, Nj Usa
Reviewing status Peer reviewed
Institute(s) Institute of Epidemiology (EPI)
Grants Kassenzahnärztliche Bundesvereinigung
Bundeszahnärztekammer
German Federal State of Mecklenburg-West Pomerania
Leibniz-Gemeinschaft
Helmholtz Association
Federal states of Germany