Dentistry dedicated to the oral health of children from infancy through the teen years. Without proper dental care, children face possible oral decay and disease that can cause a lifetime of pain and complications. Early childhood dental caries—an infectious disease—is 5 times more common in children than asthma and 7 times more common than hay fever. About 1 of 5 (20%) children aged 5 to 11 years have at least one untreated decayed tooth.