Risk factors for tooth loss in middle and older age after up to 10 years: An observational cohort study

Publication date: Available online 6 November 2017
Source:Archives of Oral Biology
Author(s): Alexander Jochen Hassel, Volkan Safaltin, Sabine Grill, Johannes Schröder, Hans-Werner Wahl, Anna-Luisa Klotz, Edriss Habibi, Peter Rammelsberg, Andreas Zenthöfer
ObjectiveThe objective of this research was to identify risk factors for tooth loss in two older birth cohorts, quinquagenarians and septuagenarians, after up to 10 years of clinical observation.DesignOne hundred and twenty-three participants were recruited from the Interdisciplinary Study of Adult Development (ILSE) and examined at baseline and up to 10 years after. Thirty-nine and 84 participants belonged to the older (OC; born in 1930/32) cohort and younger (YC; born in 1950/52) cohort, respectively. Each participant underwent a dental examination comprising evaluation of the dental status (number of teeth, prosthetic restorations), Plaque Index (PI), Gingival Index (GI), DMF-S, periodontal probing depths (PD) and tooth mobility (TM). Incidence of tooth loss over the study period was calculated for both cohorts as well as for the grouped dental target variables. A logistic regression model for tooth loss (0=tooth present/1=tooth lost) was compiled with possible binary confounders.ResultsDuring the study period, 1.2 (1.9) and 2.6 (2.6) teeth were lost in YC and OC, respectively, reflecting correspondent loss rates of 5% and 14% (p<0.001). However, primarily TM >1 merged into substantial tooth loss (60%). The regression analysis confirmed the bivariate findings. Middle- and older-aged people, quinquagenarians and septuagenarians, show relevant tooth loss. Older age and worse oral health issues were identified as risk factors for tooth loss (p<0.007).ConclusionsThe predominant predictor of tooth loss seems to be tooth mobility. With the rising challenges due to aging in several societies, knowing the risks might help clinicians when weighing treatment strategies and should encourage refining preventive measures for older patients.



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