A study done by Delta Dental found that only 29 percent of children under the age of 3 had been to the dentist. Starting visits early on can lead to a lifetime of excellent oral health. The American Academy of Pediatric Dentistry recommends that all children see the dentist after their first tooth comes in, or by the time they turn 1. Visit the Dentist by 1 campaign for more information on infant and toddler oral care.