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 4.7 Rating & 7,000+ New Flossers
 

Real string floss. Now electric.

Flossing was never the problem. Doing it by hand was.

Fifth Surface holds it on a handle you grip like a toothbrush and does the motion for you. Your fingers never wrap, pinch or pull. One hand, sitting down if you like.

 
  • Nothing wraps around your fingersThe handle holds the floss. You only need to guide it
  • The habit that finally sticksEven on the nights you used to be too tired to care
  • Especially for the back teethThe head is angled, while the handle does the reaching
  • Floss, not waterNo tank to fill, no plug, no mess — it takes real string floss to do it right
 
 
White
White
Black
Black

90 days. Long enough to get through your next cleaning.

Use it, hear how your hygienist reacts — then decide. If it is not for you, send it back.

  • Free return shipping
  • No restocking fee
 
Will it fit my mouth?
I have a crown, a bridge, or a partial.
It works around crowns and along the outside of a bridge the same way string floss does, guided rather than forced. It does not thread underneath a fixed bridge or a permanent retainer, and nothing that is not threaded will. If that is your situation, a threader is still the tool for those spaces and this handles the rest of your mouth.
My teeth are tight together in places.
In very tight contacts the floss can shred or catch, and that is true of string floss too. Ease it in rather than pushing it. This is the most common complaint in the category, and we would rather you knew before you bought than found out in week one. It is also why the guarantee is 90 days.
Can I use it with one hand?
Yes. One hand holds the handle. Your other hand does not need to be in your mouth at all.
Can I use it sitting down?
Yes, and many people find that easier. You do not need to lean into a mirror or hold both arms up. Sit at the vanity or bring it to a chair and work through your mouth at your own pace.
The practical details
What is in the box?
One Fifth Surface electric flosser, charging base, USB-C cable, and 50 floss heads. Nothing else is required to begin.
How do I use it?
Snap on a head, turn on the device, and gently guide the floss between each pair of teeth. Curve it against one tooth, then the other. Fifth Surface holds the floss and supplies the motion; you control the position and pressure. Sit down for it if that is easier.
How hard is it to change the head?
One hand, no twisting. It snaps off and the new one snaps on. See the images above for exactly how it's done.
Do I still need my cleanings?
Yes. This does not replace your hygienist and it does not remove hardened tartar. It is for the daily job between visits. Anyone telling you a device at home replaces a cleaning is selling you something.
What does the guarantee cover?
90 days at home. That is long enough to use it every night and get through your next cleaning, so you can hear what your hygienist says before you decide. If it does not suit your mouth, return the device under the terms shown in our return policy.
The difference you'll notice

What using it feels like

Tonight Brushed feels clean. Flossed feels finished. You'll be shocked what still comes out after you brush. It was in there yesterday too.
One hand How flossing was meant to feel One hand, one smooth motion, in control the whole way. Nothing to wrap, nothing to pinch.
Back teeth The back stops being the hard part If your molars were where flossing quietly fell apart, this feels closer to brushing them — you just reach back and go.
Counter-ready It lives on the counter Things in the drawer get forgotten. Things on the counter get used. This one sits next to your toothbrush, charged and already out.
files/Screenshot_2026-09-12_at_1.46.08_PM.png

I didn't quit flossing on purpose. Wrapping that string and pulling it tight got to where I just couldn't do it anymore. I hold this one like a toothbrush. It's a big difference for me.

Dean R. -- age 68 --
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THE SPACES YOU SKIP MATTER

Your toothbrush has its limits.
Your routine can go further.

Food caught between your teeth is easy to notice. Plaque is easier to overlook. Cleaning between your teeth is about removing both.

  • Beyond food

    Flossing helps remove the bacterial film that collects between teeth.2

  • Plaque to tartar

    Leave plaque in place and it can harden into something your home routine cannot remove.2

  • 4 in 10

    U.S. adults aged 30+ had periodontitis—a form of gum disease.1

  • Every day

    The ADA recommends daily cleaning between teeth, even when nothing feels stuck.2

This was never a motivation problem

You don't need more discipline.
You need less friction.

You already want to floss. It's everything that comes with it that gets in the way.

The same promise. The same four days.

Every cleaning, you make the same promise: this time, you're going to floss.

You buy the good floss. You make it four days. Maybe five. Then you're tired, one missed night becomes a week, and the floss disappears into the drawer again.

It's a lot to ask of tired hands.

The string slips. Your fingers ache. The back teeth feel impossible.

That isn't proof you don't care. An important habit has become a slippery, two-handed coordination task at the most exhausted point of your day.

Keep the real floss. Lose the wrapping.

Fifth Surface holds real floss on a powered handle, without the string wrapped around your fingers.

You still guide it and control the pressure. The idea is to take some of the hand work out of the step you keep meaning to come back to.

  • The handlingWet string. Tight fingers.
  • The reachingThose awkward back teeth.
  • The habitOut of sight. Off the list.
Fifth Surface electric flosser
Real routines. Real bathrooms.

From “I know I should”
to “I finally do.”

Useful reviews sharing why they hated flossing, what changed after Fifth Surface, & if they still reached for it after the novelty wore off.

01/04

The last two on the bottom left, I honestly hadn't properly cleaned those in about four years. Couldn't get both hands back there without my shoulder complaining. Now I can. I'll be honest with you, it was not pretty back there the first week.

— Walter P., 71, Missouri - Verified buyer

02/04

Keeping it beside my toothbrush changed everything. Floss used to be hidden in a bathroom drawer, which made it very easy to forget. This stays visible where I already brush, so the reminder is built into the space. I finish brushing, pick it up and move on without negotiating with myself first.

— Melissa G., age 42, Utah - Verified buyer

03/04

I used to think of flossing as a completely separate chore that I would do later, which usually meant never. Fifth Surface sits next to my electric toothbrush and feels like the natural next step. That small shift has made the routine feel much more finishable.

— Olivia F., age 26, NYC - Verified buyer

04/04

My flossing routine usually disappeared when work got busy because string felt like one more fiddly task. The one-handed format removes the part I dreaded most. I do not need a burst of motivation anymore; I just need to reach for the handle.

— Andrew N., age 38, New Mexico - Verified buyer

HOW IT WORKS

Four steps.
One daily habit.

Real floss, already held for you. Here’s how to make it part of your routine.

  1. STEP 01 — PREPARE

    Snap on a fresh head

    The floss is already held between the prongs. Fit the head securely before switching on. No wrapping string around your fingers.

  2. STEP 02 — SWITCH ON

    Hold it like a toothbrush

    Take a comfortable, one-handed grip and press the power button. Your fingers stay on the handle. You control where the floss goes.

  3. STEP 03 — GUIDE

    Clean both sides of each gap

    Ease the floss between your teeth. Gently guide it against one tooth, then the other, moving up and down along each surface. Never force it into your gums.

  4. STEP 04 — FINISH

    Finish at the back. Fresh head next time.

    Work around the top and bottom teeth, including the backs of your last molars. Switch off, discard the used floss head, and clean the reusable attachment as directed.

White Fifth Surface electric flosser with a blue floss head
Close-up of floss held between the head’s two prongs
Close-up of the power button on the white handle
Three different ways to clean between teeth

Choose based on the routine you will actually use.

If string floss already works for you every night, keep using it. Fifth Surface is for the person who wants real floss without managing loose string by hand.

Fifth Surface String floss Water flosser
Uses real floss
One-handed handle
Requires floss wrapped around fingers
Adds powered vibration
Built-in light Varies
Requires you to guide it around each tooth
Counter charging base Varies

Showing Fifth Surface vs string floss. View on a larger screen for the water flosser column.

Different tools solve different problems. Fifth Surface solves the string-floss handling problem without removing the floss.

The clinician perspective

We asked practising dentists what makes it difficult

What gets in the way, and what a handled format can offer.

We asked for an honest assessment. No payment was made and neither holds a financial interest in the company.

Brushing is essential, but the areas between teeth still need their own cleaning step. What stands out about Fifth Surface is how the handled design addresses one of the most common barriers: the awkward positioning and finger wrapping required by traditional floss.

Dr. Bernard M., DMD General Dentist · Regency Dental Clinic, Canada

Most patients already understand that flossing matters. The challenge is finding a method they can realistically use—especially around the back teeth. Fifth Surface puts the floss on a guided handle, which may make that part of the routine feel more manageable.

Dr. Achilles T., DMD General Dentist · Queen Elizabeth Dental, Quebec

Clinicians describe handling and access, not treatment outcomes. Ask your own dentist what is appropriate for your mouth.

Customer reviews

What people say after using it in real bathrooms.

Read the five-stars. Read the three-stars too. The right tool should survive an honest description.

4.7
out of 5
Based on 30 reviews
5 star 22
4 star 7
3 star 1
2 star 0
1 star 0

My hygienist noticed

Went in for my three month cleaning in August and she asked me what I'd changed. I told her. That's the first time in a good many years anyone's said something nice to me in that chair.

Anne-Marie L·August 8, 2026· Verified buyer

I do it sitting down now

Standing at the sink for three or four minutes at the end of the day is not nothing at my age. I take it to the chair in my bedroom and do it there while the news is on. Small thing. Made it stick.

Marjorie T·July 23, 2026· Verified buyer

My hands stopped being able to do it

I didn't quit flossing on purpose. Wrapping that string around two fingers and pulling it tight got to where I just couldn't do it anymore, and I felt a bit silly saying that out loud to anyone. This one I hold in one hand like a toothbrush. That's the whole difference for me.

Deen R.·June 6, 2026· Verified buyer

I can get at the back ones again

The last two on the bottom left, I honestly hadn't properly cleaned those in about four years. Couldn't get both hands back there without my shoulder complaining. Now I can. I'll be honest with you, it was not pretty back there the first week.

Walter P.·May 20, 2026· Verified buyer

Replaced the water one I never used

We bought a water flosser maybe five years ago. Filling it, spray all over the mirror, my wife complaining about the counter. It's in the hall closet now. This one sits out and I actually use it, which is more than I could say for the other thing.

Gerald M·August 2, 2026· Verified buyer

One hand is all I've got and it's enough

My left hand doesn't cooperate anymore and string floss was finished for me a long time ago. This works with the one hand I've got. I do wish the head was easier to snap on, my fingers aren't quick, but I manage it.

Rosalind K·July 14, 2026· Verified buyer

The clean feeling surprised me

I brush twice a day, so I assumed my mouth already felt clean. After my first full use, I understood the difference between brushed and finished - there was nothing caught between my teeth, and that immediate feeling made me want to use it again the next night.

Emily R.·January 9, 2026· Verified buyer

Much less awkward than string

My biggest issue was never understanding why floss needed both hands inside my mouth. Fifth Surface felt more natural because I could hold it like a toothbrush and guide actual floss with one hand. I needed a minute to learn the angle, but the basic idea clicked quickly.

Kevin B.·March 2, 2026· Verified buyer

I understood it after the second gap

I expected an electric flosser to be complicated, but it was surprisingly straightforward. Once I slowed down and guided the floss instead of forcing it, the rest of my mouth became much easier. It still feels like real flossing, just with far less finger work.

Lauren M.·May 17, 2026· Verified buyer

Easier than expected, but not completely instant

The front teeth were simple right away, while the back took a few attempts to figure out. By the end of the first use I had a much better feel for the angle. I appreciate that it makes flossing more manageable without pretending there is nothing to learn.

Rachel T.·August 5, 2026· Verified buyer

I realized I was only flossing the easy teeth

With regular string, I rushed through the front and quietly skipped the very back because my hands could not get into a comfortable position. The handle gives me a steadier grip and lets me approach those teeth more deliberately. My routine finally feels complete instead of almost complete.

Amanda C.·January 27, 2026· Verified buyer

No more hands tangled inside my mouth

Reaching my molars with string meant wet fingers, tight cheeks and losing tension halfway through. Using one hand is a much bigger improvement than I expected. I can concentrate on where the floss is going instead of trying to control both ends of it.

Brian S.·March 25, 2026· Verified buyer

The light helps more than I expected

I used to work by feel and usually gave up near the back. Being able to see where I am guiding the head makes the last few teeth feel less like guesswork. I still move slowly, but I feel far more in control than I ever did with loose string.

Nicole D.·June 8, 2026· Verified buyer

The very last molars still take patience

This is much easier for me than wrapping floss around my fingers, especially across most of my mouth. The furthest molars still require a careful angle and a little practice. It is not magic, but it removes enough of the awkwardness that I no longer skip them automatically.

Jason P.·August 18, 2026· Verified buyer

Real floss, so it still feels familiar

Several of my contacts are tight, which was the main thing I worried about before ordering. I go slowly and guide the floss rather than pressing down hard. What I like is having the floss held steady so I can focus on the contact instead of keeping tension with my fingers.

Megan H.·February 14, 2026· Verified buyer

Two spots still need extra care

Most of my teeth are easy with Fifth Surface, but I have two contacts that are extremely close together. Those still take more time and a gentler approach. The handle is easier for me to control than loose floss, but tight teeth do not suddenly stop being tight.

Daniel K.·April 11, 2026· Verified buyer

More control and less snapping

Traditional floss sometimes slipped through a tight contact so suddenly that it hit my gums. With the floss already held and tensioned, I feel like I can guide the movement more deliberately. I still use gentle pressure, but the whole process feels calmer and more controlled.

Ashley W.·July 3, 2026· Verified buyer

It helps, but it is not a reason to force anything

I bought this hoping tight contacts would become effortless. They did not, but the handle makes them less frustrating because I am not also fighting slippery string. Once I stopped rushing and learned the angle, it became a useful part of my routine.

Christina L.·August 7, 2026· Verified buyer

I finally made it past day four

I was always good at starting to floss and terrible at continuing. After three or four nights, the string would disappear back into the drawer. Fifth Surface feels like one simple step instead of a separate project, so it has been much easier to repeat.

Sarah J.·January 4, 2026· Verified buyer

Keeping it beside my toothbrush changed everything

Floss used to be hidden in a bathroom drawer, which made it very easy to forget. This stays visible where I already brush, so the reminder is built into the space. I finish brushing, pick it up and move on without negotiating with myself first.

Melissa G.·February 23, 2026· Verified buyer

Easy enough for the nights when I am exhausted

My flossing routine usually disappeared when work got busy because string felt like one more fiddly task. The one-handed format removes the part I dreaded most. I do not need a burst of motivation anymore; I just need to reach for the handle.

Andrew N.·April 28, 2026· Verified buyer

It finally feels like part of brushing

I used to think of flossing as a completely separate chore that I would do later, which usually meant never. Fifth Surface sits next to my electric toothbrush and feels like the natural next step. That small shift has made the routine feel much more finishable.

Olivia F.·July 27, 2026· Verified buyer

More controlled around my crown

I have a crown and was nervous about using anything new near it, so I asked my dentist before trying the device. I use gentle pressure and never force the floss. The handle gives me a steadier grip than loose string, which helps me feel more deliberate around that area.

Jennifer B.·January 18, 2026· Verified buyer

I wanted control, not another aggressive gadget

Older fillings made me cautious because I have always worried about floss catching or pulling. My hygienist showed me where and how to guide it for my mouth. I like that I remain in control of the position and pressure instead of the device pretending to do everything for me.

Michelle A.·April 1, 2026· Verified buyer

Helpful, but it does not replace my bridge cleaner

Fifth Surface works well for the regular contacts my dental professional approved, but I still use a separate tool underneath my bridge. I actually appreciate that distinction. It makes normal flossing easier without claiming to replace every specialized recommendation for dental work.

Thomas R.·June 21, 2026· Verified buyer

My hygienist helped me find the right approach

I have a mix of natural teeth and older dental work, so I brought the device to an appointment before using it everywhere. Once I knew which areas were appropriate, the one-handed grip felt much easier to manage. Anyone with dental work should get advice for their own mouth.

Rebecca C.·August 12, 2026· Verified buyer

The learning curve is real

The product is easier than string for me, but my first attempt was slower than the ads made me expect. The front teeth were simple and the back teeth took practice. After a few uses I became more comfortable, but clearer first-use guidance would make the experience better.

Lisa M.·February 5, 2026· Verified buyer

Not the best fit for every contact in my mouth

I like the handle and can use it comfortably across most of my teeth. However, two very tight contacts remain difficult, and the head feels awkward around my last molar. I still use the device, but I also keep regular floss for the areas where it works better for me.

David H.·April 19, 2026· Verified buyer
Fifth Surface response

Thank you for describing this so clearly. Fifth Surface uses real floss, so very tight contacts and individual mouth shape can still affect the experience. We never recommend forcing the floss, and the 90-day home trial is there for anyone who decides the fit is not right for their mouth or routine.

Excellent device; the instructions should show more back teeth

I am very happy with the one-handed design and use it regularly. My only complaint is that the first-use instructions made the back molars look easier than they felt in practice. A longer, unedited demonstration with multiple mouth angles would be genuinely helpful.

Stephanie P.·May 30, 2026· Verified buyer

It makes flossing easier; it does not floss for you

I love not wrapping string around my fingers, and the powered movement makes the process feel less tedious. You still have to guide the floss around each tooth and pay attention to pressure. That is not a flaw, but it is worth understanding before buying.

Mark E.·July 14, 2026· Verified buyer

Why this time the routine sticks

Built for anyone who has bought the good floss, made it a few days, and put it back in the drawer.

Real flossing, just 4 times faster

We fail because of the arithmetic we do standing at the sink, weighing the effort against how tired you are. Cut the time and the arithmetic stops happening.

One hand, toothbrush grip

The handle guides the whole routine. You hold it like a toothbrush, move along the arch, and the angle you need at the back molars is the angle the handle already gives you.

Powered motion does the heavy lifting

The device supplies the movement. You choose the gap and the pressure. That's the whole job left.

It stands next to your toothbrush

Floss that lives in a drawer, stops getting used. his stands on the counter, charged, in the row of things you already reach for without thinking.

Questions

Answered plainly, including the hard ones.

Including the blunt ones. If the honest answer is maybe not, that is what it says.

My teeth are really tight together. Will this work?

Maybe not. Tight contacts can shred floss, and that's true of ours as well as string. If your teeth are very close, this is the honest risk. That's part of why the guarantee is 90 days.

Is this just a Waterpik?

No. A Waterpik sprays water. This holds real floss and moves it between your teeth. Different tools that do different things.

I have a permanent retainer.

This won't get under the wire. Nothing that isn't threaded will. You'd still need a threader for that section.

I have crowns, a bridge, or implants.

Lots of people use it with dental work. Go gently, especially the first few times, and ask your dentist what they'd recommend for your situation.

My gums bleed when I floss. Should I stop?

Bleeding when you start flossing is common and it usually settles down as your gums get healthier. But we're not your dentist. If it keeps happening or it hurts, go get it looked at.

What's the light for?

There's an LED at the head. It lights the gap you're working in, which matters because the back of your mouth is dark and you've never been able to see what you were doing back there. It won't improve your technique on its own — that's the vibration's job.

How many heads do I get, and how long do they last?

50 in the box. Most people use about 1 per session, so we publish that number rather than the flattering one — you'd work it out anyway.

Can I cancel the refills?

Yes. Two clicks in your account. No phone call.

How long is the guarantee?

90 days. Use it, go to your next cleaning, and decide after that. Free return shipping, no restocking fee.

Not ready yet?

Try this tonight instead.

Floss once between two back teeth after brushing. Notice what the brush left behind, and how different that space feels afterward.

If that changes what clean means to you, our short guide explains the two tooth surfaces brushing cannot reach the same way floss can.

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