Enjoy a more captivating smile with Equate EasyFlex Flossing Replacement Toothbrush Heads with Bacteria Defense Bristles. Compare to Oral-B Floss Action Replacement Brush Heads. The flossing bristle design of these EasyFlex Flossing brush heads penetrate deep between teeth to help remove plaque (does not replace flossing) and provide a more effective clean that can’t be matched by a manual toothbrush. The Bacteria Defense bristles help keep the brush clean for up to 3 months (inhibits microbial growth that may affect the bristles. The bristles do not kill bacteria in the mouth or protect you against disease. Always clean the product thoroughly after use). The Replace-Me bristles fade with use to remind you when to replace your brush head. For optimum hygiene, replace your toothbrush heads every 3 months.