Oral health is an important part of general health, with implications not only for the individual but also for the broader health system and economy. Oral health across the population varies considerably between socio–economic groups and between adults and children. Access to services is important, with prevention and early intervention playing a key role in improving oral health status. In parts of the population where access is poor, the risk of poor oral health outcomes increases. The cost to individuals, the health system and the economy can be significant.