Expanding Floss

4.9
Rated 4.9 out of 5 stars
4.9 Stars (1,529 Reviews)

The boss of all floss

$5.99

The Expanding Floss is clinically proven to remove 2x more plaque than regular unwaxed dental floss*.

Yes, we've made flossing twice as effective. This is all thanks to our incredible network of dentists, hygienists, and our Ambassador community of 40,000+ Dental Professionals who demanded better.

With expanding technology, soft black thread, a smart coating, and a delicious aroma, this floss has transformed flossing for the better. We can’t wait for you to love it, too.

Aroma: Mint Eucalyptus
*In laboratory tests; data on file at burstoralcare.com/clinical.

Refill plan: $5.00 per replacement floss every 12 weeks

Aroma: Mint eucalyptus

Refill plan: $5.00 per replacement floss every 12 weeks, cancel anytime

Refill plan: $5.00 per replacement floss every 12 weeks, cancel anytime

You pay today:  $5.99

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.

Got questions?

More questions?
Find answers on our FAQs page.

4.9
Rated 4.9 out of 5 stars
Based on 1,529 reviews
Total 5 star reviews: 1.4k Total 4 star reviews: 85 Total 3 star reviews: 27 Total 2 star reviews: 6 Total 1 star reviews: 13
97%would recommend these products
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1,529 reviews
  • T
    Tim
    4 hours ago
    Reviewing
    Floss Refill
    Rated 5 out of 5 stars
    5 Stars

    No floss onnthe market that is comparable to the Burst floss!

  • H
    HTG
    Verified Buyer
    Reviewed By: Customer
    4 days ago
    Reviewed By: Customer
    Reviewing
    Expanding Floss
    Rated 4 out of 5 stars
    Generally I like it!

    The black color is a bit gimmicky to me, but I am very glad to have expanding floss again. After the brand name got rid of theirs, I had to go to dental tape and it was tearing my fingers up. This floss has saved my fingers! My only complaint is that it gets difficult to dispense as you get closer to the end of the line.

    A note on the refillable case: It looks like part of the case, but remove the old floss's core before trying to install a new refill. It's on there snug enough it looks like it belongs, but it needs to come off for you to have success!

  • CF
    Carol F.
    Verified Buyer
    Reviewed By: Customer
    4 days ago
    Reviewed By: Customer
    Reviewing
    Floss Refill
    Rated 5 out of 5 stars
    Refillable Floss container

    I love the new Burst floss. It is easy to use and best of all the container is refillable!

  • LD
    Lori D.
    Verified Buyer
    Reviewed By: BURST Ambassador
    6 days ago
    Reviewed By: BURST Ambassador
    Reviewing
    Floss Refill
    Rated 5 out of 5 stars
    Great floss!

    This the best floss!

  • E
    Ebony
    1 week ago
    Reviewing
    Floss Refill
    Rated 5 out of 5 stars
    5 Stars

    Always good and the texture is rough which really good for my tight teeth