The Oral-B iO Radiant White brush heads combine powerful but gentle micro-vibrations with unique, dentist-inspired round brush heads for a professional cleaning experience every day. Developed exclusively for Oral-B iO electric toothbrushes, the Radiant White brush heads help to remove up to 100% more plaque than a conventional manual toothbrush, leaving teeth clean and bright. The Radiant White brush head combines precisely angled bristles and special polishing blades to reach all areas of the tooth and gently remove surface discolouration for a bright white smile. As dentists recommend changing the brush head every 3 months for results, Oral-B brush heads have bristles that signal when it's time for a change.