Objective: Depression and tooth loss are significant health problems that affect individuals' functionality and quality of life. Comorbidity between depression and oral diseases has been reported. The aim of this study was to investigate the association between depression and tooth loss in a US representative adult sample.
Methods: This study included data from 22,532 adults ≥18 years by combining six 2-year cross-sectional cycles of the National Health and Nutrition Examination Survey (NHANES) administered between 2005 and 2016. Data were analyzed using descriptive statistics and multinomial logistic regression adjusted for gender, age, race/ethnicity, smoking, education, socioeconomic status, body mass index, diabetes, and alcohol intake.
Results: Of the total sample, 4.5 percent were edentulous, 10.3 percent were lacking functional dentition (1-19 remaining teeth) and 85.2 percent had functional dentition (≥20 remaining teeth); among whom, the prevalence of depression was 12.4, 11.7, and 5.9 percent, respectively. Compared to individuals without depression, those with depression were more likely to be edentulous or lacking functional dentition versus having functional dentition (adjusted odds ratios (95% CI): 1.48 (1.16-1.89) and 1.43 (1.18-1.75), respectively).
Conclusions: Depression was associated with edentulism and a lack of functional dentition. Further longitudinal and interventional studies are needed to elucidate the nature and direction of the relationship between depression and tooth loss.
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