With the Oral-B iO brush attachments, you can easily remove dental plaque and keep your teeth clean. These brush attachments are suitable for all Oral-B iO toothbrushes. We recommend you to replace the iO brush attachments every 3 months. That way, you maintain the best possible brushing result. Which Oral-B iO brush attachments suit you best depends on your needs. For a thorough clean, go for the Oral-B iO Ultimate Clean brush attachments. Do you have sensitive teeth? Choose the Gentle Care brush attachments.