Cross‐sectional analysis of role of socioeconomic status in the association between depression and periodontitis

Depression and periodontitis are two common health problems, and some studies suggest they might be linked. But could this connection actually be due to other factors, like low income or education levels? To find out, we analyzed data from a national US health survey involving over 9500 adults who answered questions about their mental health, income, education, and lifestyle, and who also underwent a full-mouth periodontal examination. We found that depression and periodontitis appeared to be connected at first glance. However, when we considered socioeconomic factors-especially low income-the link between the two disappeared. This suggests that financial challenges and limited access to resources might play a bigger role than previously thought. Our findings highlight the need for health professionals to look beyond individual conditions and consider a person's broader life circumstances when providing care. At a public health level, addressing social inequalities could help improve both mental and oral health outcomes.