A child's dental development begins before birth, and continues for about the next 18 years. When your child's first tooth appears, you might begin wondering when the first trip to the dentist should be scheduled. Your child's first visit to a dentist should be by age two or three, when all 20 baby teeth have come in. After the first visit, children should see a dentist twice a year for cleanings and checkups. These visits can allow your dentist to detect flaws early, possibly preventing more serious problems in the future. For a child's comfort, you might consider selecting a pediatric dentist. These doctors specialize in treating young patients, and are usually careful to be gentle and sensitive to a young child's needs. You can locate a pediatric dentist in your area by contacting the American Dental Association. Some dentists advertise a family practice, which may include caring for young children, too.