Fluoride toothpaste may be used as early as about two years old. In fact, some studies have shown use of fluoride toothpaste at this young age can decrease cavity formation. Swallowing toothpaste should be avoided, if at all possible. Tubes of toothpaste should be placed away from young children's reach, but toothbrushes should be accessible to encourage use. When brushing your son's teeth, you might try different positions.
Some parents find sitting knee to knee with their child works well.
Others may approach the mouth from behind while their child sits in their lap. Until the child stops protesting, involve both parents in the brushing process. Flossing, fluoride supplements, sealants and regular dental visits also help prevent tooth decay in young children. A child's first dental visit should occur one year after birth or six months after the first tooth has erupted. And by the way, families should not share toothbrushes and eating utensils because the bacteria that causes tooth decay is highly transmissible.