Deprivation and oral health: a review.

The link between socioeconomic status and health, including oral health, is well established. The conventional measures of socioeconomic status used in these studies, such as social class and household income, have a number of weaknesses so that alternatives, in the form of area-based measures of deprivation, are increasingly being used. This paper reviews epidemiological research linking deprivation and oral health. Four types of study are identified and described: simple descriptive, comparative, analytic and explanatory. These studies confirm that deprivation indices are sensitive to variations in oral health and oral health behaviours and can be used to identify small areas with high levels of need for dental treatment and oral health promotion services. As such, they are likely to provide a useful administrative tool. In terms of research, the studies demonstrate that these measures provide a ready way of controlling for socioeconomic status in studies examining the association between oral health and other variables. However, this research, in largely replicating previous studies using social class, does not address fundamental issues concerning the mechanisms which link social inequality and health. Deprivation measures have a major role to play in research that examines features of people and places, and how they promote and/or damage both oral and general health.