Distribution of Australian dental practices in relation to the ageing population

Objective: The purpose of this study was to analyse and map the distribution of the ageing population, by sociodemographic profiling, in private and public dental practices in Australia. Background: The rapid increase in the aged population in Australia requires a comprehensive approach to ensure accessibility to geriatric dental services. However, the availability of dental services for the older people requires further investigation of the demographic distribution of need. Materials and Methods: Dental practices were located and mapped against the ageing population data. The address for each dental practice in Australia was compiled from online access sources. Australian socioeconomic data were integrated with dental practices, clinic locations and older populations using Geographic Information System (GIS) technology. Results: There was an uneven distribution of dental practices across Australia's States and Territories (NT and ACT). Tasmania had the highest ratio of private practices to the older population (1:1000) and the highest percentages of this ageing cohort (32%, 61%) that lived more than 5 km from private and public dental practices respectively. Higher percentages of dental practices were located in areas of lower socioeconomic status in Tasmania, Queensland and South Australia (47%, 42% and 38%) respectively, however, these areas were associated with higher ageing population densities. Conclusion: There is a geographic maldistribution of dental practices in relation to the spatial distribution of Australia's older population, with the inequity most pronounced in the most disadvantaged areas. This inequality requires a National approach to match dental services to the population that they serve.