In the United States, cavities are common in very young children and teenagers. Older adults also are at higher risk. Over time, teeth can wear down and gums may recede, making teeth more vulnerable to root decay. Older adults also may use more medications that reduce saliva flow, increasing the risk of tooth decay.

What race has the most cavities?

Black youths had the most untreated cavities (17.1%) compared with Hispanic (13.5%), white (11.7%) and Asian (10.5%) youths. The American Dental Association has tracked the historical trend of racial disparity in oral health care – and its correlation to income levels – over several decades.

What age do most people have cavities?

59% of 12 to 18 year-olds have had cavities, with about 20% of those cases being untreated. By adulthood, about 92% of people have had cavities. This is especially true of people between 20 and 64 years old. The percentage of cavities as well as tooth loss and associated gum disease increases after age 65.