The Oral-B iO Series Ultimate Clean Replacement Brush Heads combine powerful but gentle micro-vibrations with our unique, dentist-inspired round brush head design for a professional clean feeling every day. Designed exclusively for Oral-B iO electric toothbrush handles, the Ultimate Clean brush heads help remove up to 100% more plaque than a regular, manual toothbrush, leaving teeth feeling clean and bright. Precisely angled at 16 degrees, tufted bristles help clean hard-to-reach areas of the mouth. Since dentists recommend changing your toothbrush head every 3 months for best results, Oral-B replacement brush heads feature color-changing bristles that signal when it's time for a change by fading to white. Enjoy superior cleaning power with the only refill brush heads designed exclusively for – and guaranteed to fit – your Oral-B iO electric toothbrush.

Who should choose which?

• For maximum plaque removal: If you want the most powerful clean and have no issues with gum sensitivity, the
  Oral-B iO Ultimate Clean
  is the better choice. Its higher bristle density and angled design are built for tackling tough plaque.
• For sensitive teeth or gums: If you have sensitive teeth or inflammation in your gums, the
  Oral-B iO Gentle Care
  heads are the best option. They provide an effective clean with soft, ultra-fine bristles that are less abrasive.