Oral health is essential to the general health and well-being of individuals and the population. Yet significant oral health disparities persist in the U.S. population because of a web of influences that include complex cultural and social processes that affect both oral health and access to effective dental health care. This paper introduces an organizing framework for addressing oral health disparities. We present and discuss how the multiple influences on oral health and oral health disparities operate using this framework. Interventions targeted at different causal pathways bring new directions and implications for research and policy in reducing oral health disparities.

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Defining complexity in terms of the misalignment between patient needs and services offers new insights in how to research and develop solutions to patient care needs.

We used data from a4-year prospective study of 2,558 primary care patients age 65 and older in a large staff model health maintenance organization to examine the association of clinically significant depressive symptoms and eight other chronic medical conditions with quality adjusted life years (QALYs). We developed linear regression models to examine the association of clinically significant depressive symptoms as defined by a score of 16 or greater on the Center for Epidemiological Studies Depression Scale and eight common chronic medical disorders at baseline with QALYs over the 4-year study period. Estimates of QALYs were derived from Quality of Well-Being Scale scores at baseline, at 2-year follow-up, and at 4-year follow-up. Individuals with clinically significant depressive symptoms at baseline had signrficantly lower QALYs over the 4year study period thannondepressed subjects, even after adjusting for differences in age, gender, and the eight other chronic medical conditions. In terms of the entire study population, only arthritis and heart disease were more strongly associated with QALYs than depression.

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