Tooth Decay No. 1 Dental Problem for Toddlers
The No. 1 dental problem among preschoolers is tooth decay. By age 2, approximately one in 10 children already has one or more cavities. By age 3, 28 percent do. By age 5, nearly 50 percent do. Dental decay in baby teeth can negatively affect permanent teeth and lead to future dental problems.
Source: American Academy of Pediatrics