Replacement Brush Heads - Best Buy (2025)

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

Model: iO RB CBF-4

SKU: 6600047

Rating 5 out of 5 stars with 5 reviews(5 reviews)

Top comment

"Just ordered 5 more Ultimate Clean heads!...I've tried the Ultimate whitening replacement brush head and it's nothing special. It really can't compare to the Ultimate Clean brush heads....Oral B brushes heads...[This review was collected as part of a promotion.] My Oral B IO Replacement Brush Heads are great. Came in a two pack, which was great, one to share. "

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Product Description

Say goodbye to guesswork! With iO refill technology, your brush head knows when it's time for a change. Watch the magic unfold as the color transforms from vibrant blue to pristine white, signaling when to it's time to change and ensuring a fresh and effective clean every time. The iO collection is Oral-B’s best technology. These replacement brush heads contain High Density Dentist-inspired extra soft bristles for a gentle clean. Optimized bristle patterns adapt to the curves of the teeth and gums but are extra soft for maximum comfort. Precision fit with a gentle clean. Compatible with Oral-B iO Electric Toothbrush Handles. Dentists recommend changing your brush head every 3 months for best results. You will receive 4 Oral-B iO Gentle Care Replacement Brush Heads. Best of all, it is brought to you by Oral-B—the #1 brand used by dentists worldwide.* *Based on surveys of a representative worldwide sample of dentists carried out for P&G regularly. Do not use on children under age 3. Replace brush every 3 months or sooner if brush head becomes worn.

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Top comment

"Just ordered 5 more Ultimate Clean heads!...I've tried the Ultimate whitening replacement brush head and it's nothing special. It really can't compare to the Ultimate Clean brush heads....Oral B brushes heads...[This review was collected as part of a promotion.] My Oral B IO Replacement Brush Heads are great. Came in a two pack, which was great, one to share. "

See all customer reviews

Product Description

Say goodbye to guesswork! With iO refill technology, your brush head knows when it's time for a change. Watch the magic unfold as the color transforms from vibrant blue to pristine white, signaling when to it's time to change and ensuring a fresh and effective clean every time. The iO collection is Oral-B’s best technology. These replacement brush heads contain High Density Dentist-inspired extra soft bristles for a gentle clean. Optimized bristle patterns adapt to the curves of the teeth and gums but are extra soft for maximum comfort. Precision fit with a gentle clean. Compatible with Oral-B iO Electric Toothbrush Handles. Dentists recommend changing your brush head every 3 months for best results. You will receive 4 Oral-B iO Gentle Care Replacement Brush Heads. Best of all, it is brought to you by Oral-B—the #1 brand used by dentists worldwide.* *Based on surveys of a representative worldwide sample of dentists carried out for P&G regularly. Do not use on children under age 3. Replace brush every 3 months or sooner if brush head becomes worn.

See all Toothbrush Replacement Heads

See all Toothbrush Replacement Heads

Replacement Brush Heads - Best Buy (2025)
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