RADIUS Original Toothbrush Limited Edition Right Hand Set of 。Supersized Brush Head for Superior Cleaning The wide oval brush head is designed to improve gum health and can even reduce the risk of gum and heart disease by massaging the whole mouth — leaving you with that tingly-fresh feeling. It’s like a trip to the dentist, every day and night. 3X More Bristles Not only are there more of them, the Big Brush’s mass of bristles are softer and more uniquely aligned, providing even pressure that helps reduce chronic bleeding, receding gums and enamel erosion.