floss replacement bobbin
floss replacement bobbin
floss replacement bobbin
floss replacement bobbin
Clinically proven
BPA & Teflon-free
Cruelty-free
24/7 expert support

Replacement Floss

4.8
Rated 4.8 out of 5 stars
4.8 Stars (1,639 Reviews)

The boss of all floss

$5.00

Select the refill designed for your case.
Each refill is precision-made to fit its matching dispenser for a seamless, tangle-free experience.

Refill options:
For the Expanding Floss Case. Compact, powerful, and ready to keep you flossing for another month.

Refill plan: $5.00 replacement floss bobbin every 4 weeks, cancel anytime

Aroma: Mint eucalyptus

Refill plan: $5.00 replacement floss bobbin every 4 weeks, cancel anytime

Select the refill designed for your case.
Each refill is precision-made to fit its matching dispenser for a seamless, tangle-free experience.

Refill plan: $5.00 replacement floss bobbin every 4 weeks, cancel anytime

You pay today:  $5.00
Watch it, shop it
See what people think and shop the faves.

Co-created with 1000s of hygienists & dentists

"I love the BURST floss for its color! The black helps my patients see the plaque removal and the expanding technology has more surface area to grab bacteria."

- Kim F., RDH & BURST Ambassador

Go easy on gums

Textured, soft, shred-resistant, expanding thread scrubs away debris while pampering gums. 

Less gunk = better breath 

Clinically tested and shown to remove up to 85% of plaque on surfaces toothbrushes can’t reach and 2x more plaque than a regular unwaxed dental floss.*

*In laboratory tests. Data on file. Download at burstoralcare.com/clinical.

Instantly expands

Expands on contact with saliva to scrub more surface area than typical floss.

See the results

Get the instant satisfaction of seeing exactly what’s been lurking between your teeth, motivating you to keep on flossing!

Refillable case for less waste

Reduce and reuse with our lightweight, compact, 95% recycled plastic case and 40-yard replacement bobbins.

The 8 Best Lip and Oral Care Products of 2021, according to Health Editors

“We’ll be the first to admit that we don’t always remember to floss—unless, of course, it’s with this innovative version. The fibers expand when they come in contact with saliva, which means the floss strands glide between your teeth easily and take more gunk out with them. The charcoal coating helps absorb stains and dirt (so much you can actually see it on the floss if you want to gross yourself out). The refillable packaging is just icing on the cake”

“This floss expands when it touches saliva, so it hugs every nook and cranny between your teeth. The charcoal coating helps reduce stains but also means you can see everything that comes out of your mouth (gross but satisfying).”

“This innovative string takes flossing to the next level. It expands upon contact with saliva so that it can remove even more plaque from between your teeth.”

Curious what people think?

Our BURST Ambassador Dental Professionals and customers know their stuff. You should listen to them.

4.8
Rated 4.8 out of 5 stars
4.8 Stars (1,639 Reviews)

“If you didn't like flossing before, you're going to love it now. The feeling of being able to see the nasty that you removed from this black floss isjust so satisfying. Never thought I' II be so excited to floss. Best stocking stuffer to put in every Christmas bag this season. Just reviewing this floss just made me want to eat and floss again.”

Marisa P.

RDH, BURST Ambassador

“Hands down (or fingers up) my favorite floss! I love that it is black and I can see all the little nasties coming out of my teeth and gums. l love that it is helping remove the stains from my teeth due to my coffee addiction. And it tastes AMAZing!”

Nicole K.

RDH, BURST Ambassador

“BURST floss is my favorite to date and I'll tell you why. The black color makes it so easy to SEE your progress!!! The aroma is fantastic with essential oils to help with gum health! lt's fine enough to reach all those hard to get to places also!!!”

Jenee C.

RDH, BURST Ambassador

See all reviews

Got questions?

More questions?
Find answers on our FAQs page.

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4.8
Rated 4.8 out of 5 stars
Based on 1,639 reviews
Total 5 star reviews: 1.5k Total 4 star reviews: 95 Total 3 star reviews: 32 Total 2 star reviews: 8 Total 1 star reviews: 20
96%would recommend these products
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1,639 reviews
  • WE
    Wendy E. W.
    Verified Buyer
    Reviewed By: Customer
    3 hours ago
    Reviewed By: Customer
    Reviewing
    Expanding Floss 4 Pack
    Rated 5 out of 5 stars
    Floss rating

    Love it! Best floss to date.

    Was this helpful?
  • MS
    Marie S.
    Verified Buyer
    Reviewed By: Customer
    Yesterday
    Reviewed By: Customer
    Reviewing
    Expanding Floss 4 Pack
    Rated 1 out of 5 stars
    Didn’t get holder

    I need the holder for the floss

    Was this helpful?
    BO Profile picture for BURST Oral Care
    BURST Oral Care
    3 minutes ago

    We’re glad to see you’re already in touch with a member of our team to get this sorted! 😊
    Just as a note, the floss case is included with the first order only, and subsequent orders are for refills.
    Thanks for being part of the Burst community!

    • Burst Customer Experience Team
  • N
    Nora
    Reviewed By: BURST Ambassador
    Yesterday
    Reviewed By: BURST Ambassador
    Reviewing
    Expanding Floss
    Rated 5 out of 5 stars
    Best floss ever

    So satisfying and love that it is expanding. The best floss I’ve ever purchased. Highly recommend!!!!

    Was this helpful?
  • S
    Sarah
    Reviewed By: BURST Ambassador
    Yesterday
    Reviewed By: BURST Ambassador
    Reviewing
    Expanding Floss
    Rated 5 out of 5 stars
    Amazing

    This tik tok viral floss is amazing. I love being able to see why my normal floss is missing. Love how thick it is. Will be repurchasing.

    Was this helpful?
  • J
    Jenna
    Reviewed By: Customer
    Yesterday
    Reviewed By: Customer
    Reviewing
    Expanding Floss
    Rated 5 out of 5 stars
    The best!

    This is the best floss I’ve ever used. I wish I could get the BFD cheaper so my boss would be willing to purchase for me to use it in office for all my patients. I’d also love to see it in a pick like the kids to send home with my patients.

    Was this helpful?