The iO Specialized Clean brush head is designed in collaboration with dental professionals to effectively clean areas requiring special attention, such as braces, implants, and misaligned teeth. - Specifically crafted with dentists to access and clean areas needing extra focus, like braces, implants, and misaligned teeth - Features angled outer bristles supporting the central brush to reach and clean hard-to-access areas - Start brushing with your regular iO brush head and switch to the iO Specialized Clean brush head to enhance cleaning in difficult areas - Exclusively designed to fit iO toothbrushes - Dentists recommend replacing the brush head every three months for optimal cleaning - Number of brush heads in this package: 2