Experience the oral-b Sensi ultra-thin toothbrush head designed by oral-b, the # 1 dentist recommended brand worldwide. Designed with round petal shape dentists. It has soft, ultra-fine bristles that are gentle on gums and normal bristles that are hard on the plaque. Sensi ultrathin removes up to 100% more plaque and reduces gingivitis by 100% compared to a manual toothbrush. The unique combination of tip-rounded and ultra-fine bristles makes sense ultrathin ideal for anyone with a sensitive mouth and anyone looking for a wonderful gentle cleansing.