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“What is the purpose of the color change in the brush head?”

This question is for: Oral-B - iO Series Ultimate Clean Replacement Brush Head for iO Series Electric Toothbrush (4 count) - Black

This question was generated by AI based on customer and product data.

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Oral-B - iO Series Gum & Sensitive Replacement Brush Head for iO Series Electric Toothbrush (4 count) - White-Alt_View_Standard_21

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The color change in the brush head indicates when it's time to replace it for a fresh and effective clean.
This answer was generated by AI based on customer and product data.