Many different types of food can cause tooth decay in children, not just candy. Foods that are high in carbohydrates, as well as some fruits, juices and sodas, peanut butter, crackers and potato chips are culprits. Factors that cause tooth decay include the frequency in which the foods are eaten and the time they remain as particles in the mouth.
Dentists believe that kids who consume too much soda and not enough nutritional beverages are prone to tooth decay in addition to serious ailments later in life, such as diabetes and osteoporosis. Drinking carbonated soft drinks regularly can contribute to the erosion of tooth enamel. Enamel breakdown leads to cavities. If erosion spreads beneath the enamel, pain and sensitivity may eventually result. This can cause nerve infection, which can result in the need for a root canal.
Courtesy of AGD: Academy of General Dentistry