Keep Your Brush Performing with new heads Keep your Sonic and Sonic One Toothbrush performing at its best. Our Replacement Heads are designed to deliver a gentle yet effective clean, easily reaching every corner of the mouth. Regularly replacing your toothbrush heads, recommended at least every three months, helps maintain peak performance and hygiene, ensuring your teeth stay healthy and clean. These electric toothbrush heads feature dentist-developed soft bristles that protect enamel and gums while ensuring plaque is removed more effectively than with a manual brush. Please note: Compatible with the Original and Sonic One toothbrush Not compatible with the Sonic Pro Toothbrush Product Packaging may vary