We know that the impacts of tooth decay are inequitable in New Zealand. Low-income adults will have lost 2.5 teeth on average by the time they are 38 due to tooth decay; whereas this is only 0.4 of a tooth for those on high incomes. These differences are impactful. Tooth decay combined with the cost of dental care causes painful conditions. Some people are prevented from working because of tooth decay. It contributes to unemployment and loss of confidence in people.