More than half of all children in the US will develop a dental cavity before the fourth grade, according to the Centers for Disease Control and Prevention.Although using an electric toothbrush is not guaranteed to reduce dental issues, experts say that a powered brush can make it easier for some kids to develop good oral-health habits.For children using an electric toothbrush for the first time—or for anyone who prefers a smaller, vibrating brush head with a rubberized back or enjoys decorating their toothbrush with colorful animal stickers—the Philips Sonicare for Kids Design a Pet Edition rechargeable toothbrush is a great choice. It can sync wirelessly with an interactive app for kids, which some brushers may find motivating.