ArticleJournal of periodontology2026
Development of simple predictive models of tooth loss in the community setting.
Article in Journal of periodontology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundA simple tool for predicting the risk of tooth loss is considered valuable for the implementation of early preventive measures in community settings. This study aimed to establish a simple predictive model for tooth loss in a community-dwelling Japanese population.
methodsThis longitudinal study included 1755 participants aged 40-79 years who underwent dental examinations between 2007 and 2012. Incident tooth loss was defined as losing ≥2 teeth over a 5-year period, corresponding to the highest quartile of the number of teeth lost. Logistic regression analysis was employed for developing multivariate prediction models with and without dental examination data. The developed models were translated into simplified scoring systems based on the beta coefficients. The discrimination of the model was assessed using the Hosmer-Lemeshow test, and the calibration was assessed using a calibration plot.
resultsThe incidence of tooth loss was 24.1%. The multivariable model without dental examination data, which included age, current smoking, diabetes, periodontal treatment, number of teeth present, and occupational status as predictors, demonstrated good discrimination and calibration. The multivariable model with dental examination parameters (periodontitis stage and untreated decayed teeth) as predictors demonstrated better predictive performance. The simplified scores, which were developed based on multivariable models, demonstrated predictive performances comparable to that of their respective multivariable models.
conclusionThe prediction model, even the model without dental examination data can be used to identify individuals at high risk for tooth loss. The simple scoring tool for predicting tooth loss can be readily implemented in the community. PLAIN LANGUAGE SUMMARY: We developed a multivariable risk prediction model and simplified scoring system for predicting tooth loss, which may help in the identification of individuals at a high risk of tooth loss in a community.
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