The Oral-B iO Specialized Clean toothbrush is designed in collaboration with dental professionals to effectively clean hard-to-reach areas, such as braces, implants, and misaligned teeth. It features angled outer tufts that support the central tuft to ensure thorough cleaning. The iO Technology combines Oral-B's unique round brush heads with gentle micro-vibrations for optimal cleaning performance. The brush heads are exclusively designed to fit Oral-B iO toothbrushes, and dentists recommend changing the brush head every 3 months for best results. This pack includes 2 toothbrush heads. Oral-B is the #1 brand most used by dentists worldwide and has clinically proven results.