Some dental problems begin very early in life. One concern is early childhood tooth decay, a serious condition caused by a child staying on the bottle (or breast) too long. Another problem is gum disease. About 40 percent of children two to three years old have at least mild inflammation of gum tissues. Oral habits (such as digit sucking) should also be checked. The earlier the dental visit, the better the chances of preventing problems. Strong, healthy teeth help your child chew food easily, speak clearly, and feel good about his or her appearance.