Updated on August 5, 2025
5 min read

Waterpik Sonic Fusion

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Maintaining good gum health isn’t always easy, especially with how frustrating flossing can feel. Fortunately, there are plenty of tools available today that can simplify the routine.

The Waterpik Sonic-Fusion flossing toothbrush combines a sonic toothbrush and water flosser into one convenient device. But does it truly make flossing easier and improve gum health?

Waterpik Sonic Fusion 2.0

What is Waterpik Sonic-Fusion?

The Waterpik Sonic-Fusion 2.0 is the second version of the world's first flossing toothbrush. The Sonic-Fusion 2.0 combines the power of an advanced sonic toothbrush with Waterpik Water Flossers’ proven effectiveness.

It vibrates thousands of times per minute to remove plaque while a pulsating water flosser jet simultaneously cleans between your teeth and gums.

This combination helps to achieve superior oral health and eliminates the need for multiple dental cleaning devices.

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Waterpik Sonic-Fusion 2.0

Black Waterpik Sonic-Fusion 2.0 toothbrush and water flosser with a circular base and water reservoir against a light purple background.

Waterpik Sonic-Fusion 2.0

Black Waterpik Sonic-Fusion 2.0 toothbrush and water flosser with a circular base and water reservoir against a light purple background.

Rating by Kyra Willans

Functionality and Efficiency
Ease of Use and Design
Effectiveness for Dental Health
Value for Money
Additional Features

The Waterpik Sonic-Fusion 2.0 is an innovative oral hygiene device that can improve your overall dental health. Although it has a higher upfront cost compared to standard toothbrushes and flossers, it's still a valuable investment in dental care.

4.3

How Does it Work?

The Waterpik Sonic-Fusion turns oral hygiene into an effective one-step process by: 

  • Eliminating more plaque.
  • Reducing bleeding and gum inflammation.
  • Cleaning hard-to-reach areas that a regular toothbrush can't reach.

The toothbrush has various cleaning modes and pressure settings. This feature allows you to customize the water pressure based on your preferences.

This device is rechargeable and includes a charging base perfect for a standard bathroom countertop. Waterpik offers a 60-day return policy and a 3-year warranty on the Sonic-Fusion 2.0 flossing toothbrush.

Experience the next level of flossing with 2024's cutting-edge water flossers. See our expert recommendations here.

What Are Waterpik Sonic-Fusion’s Best Features?

The new Waterpik Sonic-Fusion 2.0 has up to 2X the bristle tip speed of the original version. The built-in water flosser tip offers a high-low bristle pattern that gently brushes while the water removes plaque and debris. 

The irrigation hose delivers water directly into the brush head and can reach hard-to-reach areas with a 360-degree handle-end swivel. The hose is flexible and easily coiled, attached, and detached.

The delivery unit features ten different water pressure settings with a vented fluid reservoir, so the air unit dries between uses. Lastly, it has an easy-to-grip, lightweight handle holding the mode buttons. 

Additional features

Other features include: 

  • Over 60 seconds of flossing time
  • 2 flossing brush heads (1 compact, 1 regular) with covers
  • 2-minute timer with a 30-second pacer
  • 3 cleaning modes (brush, floss, brush and floss)
  • 10 advanced pressure control settings
  • Recharge indicator light 
  • Deluxe toothbrush travel case
  • Global voltage
  • 3-year warranty

Does the Waterpik Sonic-Fusion Actually Work?

Clinical trials have put hybrid devices like the Sonic-Fusion to the test, comparing their effectiveness against traditional flossing and standalone electric brushes. Here’s what the latest research found:

  • Better plaque removal — Studies show water flossing combined with sonic brushing significantly reduces plaque at the gumline and between teeth compared to manual brushing and flossing.
  • Improved gum health — Sonic-Fusion users experienced up to two times better reductions in gingival bleeding and inflammation than those who relied on traditional flossing alone.
  • Dental professional approval — The American Dental Association awarded the Sonic-Fusion its Seal of Acceptance, recognizing its proven effectiveness at reducing plaque and gingivitis.

While the short-term benefits of the Waterpik Sonic-Fusion are clear, long-term studies on its effectiveness and outcomes remain limited.

Smile brighter, fight cavities, freshen breath – 2024's best toothpastes deliver. See our expert picks here.

What Are the Pros and Cons of the Waterpik Sonic-Fusion?

Using a Waterpik Sonic-Fusion offers many benefits, but also some downsides. These include:

ProsCons
Saves time and simplifies routine.The Waterpik Sonic-Fusion isn’t easily portable.
Great for people with braces or limited hand mobility.Unlike some other water flossers, Sonic-Fusion doesn’t use multiple tips for specialized cleaning needs.
Stimulates gums for better circulation and gum health.Costs more than regular floss, especially with replacement costs.
Reduces the risk of gingivitis and inflammation.It might take some time to use the Waterpik Sonic-Fusion properly.
Easy to use.
Quieter than other water flossers.

Is Sonic-Fusion safe for sensitive gums and implants?

Sonic-Fusion has been extensively studied and found to be safe for most users. You can adjust the pressure for gentle cleaning if you find it uncomfortable or have sensitive gums.

Clinical reviews confirm that using water flossers like Sonic-Fusion at appropriate pressure settings doesn’t harm soft tissues or cause gum recession. However, there are times when you should seek your dentist’s advice first:

  • After dental procedures — Avoid water flossing near extraction sites or surgical areas until healed.
  • Active gum infections — Treat inflammation or infection before resuming regular Sonic-Fusion use.
  • Deep periodontal pockets — If diagnosed with advanced gum disease, consult your dentist to ensure proper technique and pressure use.

Can I Use Mouthwash in My Sonic-Fusion?

You can use most mouthwashes in the reservoir of your Sonic-Fusion. The exceptions are povidone-iodine and pure essential oils, such as tea tree oil, which can damage the device.

If you use any agent other than water in the reservoir, you should flush the unit with water immediately after use.

In addition to mouthwash, Waterpik toothbrush users can use any toothpaste type with the unit, including baking soda products.

How Much Does the Waterpik Sonic-Fusion Cost?

The Waterpik Sonic-Fusion 2.0 ranges in price from $160 to $199.99. That may seem like a lot for a dental health device, but you get a sonic toothbrush and water flosser in one package.

Here’s a breakdown of the initial and replacement costs.

OptionAverage Cost
Sonic-Fusion$160 to $199.99
Separate brush + flosser$140 to $250 combined
Brush head replacement$10 to $24 every 3 months

Waterpik Sonic-Fusion 2.0 Vs. Other Water Flossers

Here's a quick comparison of the Waterpik Sonic-Fusion 2.0 compared to other water flossers:

ModelTypeIdeal ForWater CapacityPressure SettingsPrice
Waterpik AquariusCountertopAt-home use22 ounces10$89.83
Waterpik Cordless AdvancedCordlessSmall spaces, travel, shower use45 seconds3$69.99
Waterpik IONCordlessSmall bathrooms, no cord clutter90 seconds10$89.16
Waterpik Cordless FreedomCordlessBudget-conscious, travel30 seconds2$52.99
Waterpik Sonic-Fusion 2.0®Toothbrush ComboBrushing and flossing in one60+ seconds10$170.09
Waterpik WhiteningCountertopTeeth whitening90+ seconds10$99.99
Waterpik Water Flosser for KidsCountertop (Kids)ChildrenN/AN/A

Click here to read our article about different water flossers on the market.

Fresher breath, healthier gums, stronger teeth – find it all in 2024's best mouthwashes. Explore the top picks here.

Last updated on August 5, 2025
8 Sources Cited
Last updated on August 5, 2025
All NewMouth content is medically reviewed and fact-checked by a licensed dentist or orthodontist to ensure the information is factual, current, and relevant.

We have strict sourcing guidelines and only cite from current scientific research, such as scholarly articles, dentistry textbooks, government agencies, and medical journals. This also includes information provided by the American Dental Association (ADA), the American Association of Orthodontics (AAO), and the American Academy of Pediatrics (AAP).
  1. Mancinelli‑Lyle D, et al. “Effectiveness of a Sonic‑Flosser Toothbrush with Different Size Brush Heads and Manual Toothbrush plus Dental Floss on Plaque, Gingival Bleeding and Inflammation in Adults with Naturally Occurring Gingivitis: A 4‑Week Randomized Controlled Trial.” International Journal of Dental Hygiene, 2023.
  2. Lyle et al. “Efficacy of the Use of a Water Flosser in Addition to an Electric Toothbrush on Clinical Signs of Inflammation: 4‑Week Randomized Controlled Trial.” Compendium of Continuing Education in Dentistry, 2020.
  3. Goyal et al. “Comparison of Water Flosser and Interdental Brush on Reduction of Gingival Bleeding and Plaque: A Randomized Controlled Pilot Study.” Journal of Clinical Dentistry, 2018.
  4. Kotsakis et al. “A Network Meta‑Analysis of Interproximal Oral Hygiene Methods in the Reduction of Clinical Indices of Inflammation.” Journal of Periodontology, 2018.
  5. Worthington et al. “Home Use of Interdental Cleaning Devices, in Addition to Toothbrushing, for Preventing and Controlling Periodontal Diseases and Dental Caries.” Cochrane Database of Systematic Reviews, 2019.
  6. American Dental Association Council on Scientific Affairs. “Waterpik Sonic‑Fusion Toothbrush/Flosser: ADA Seal of Acceptance Program Statement.” ADA, 2024.
  7. Sanz et al. “Treatment of Stage I–III Periodontitis: The EFP S3‑Level Clinical Practice Guideline.” Journal of Clinical Periodontology, 2020.
  8. Jolkovsky D L & Lyle D M. “Safety of a Water Flosser: A Literature Review.” Compendium of Continuing Education in Dentistry, 2015. 
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