Upgrade Your Oral Health - HSA/FSA Eligible
360 U shaped toothbrush head with dense bristle rows for full-mouth cleaning and gumline coverage in seconds.
U shaped tooth brush with 18,000 bristles and personalized mouthpiece for fast, thorough cleaning and gumline stimulation.

TrueFit Mouthpiece™

$29

0B
1A
3A
3B
3C
5A
5B
1

Elevate your oral hygiene with the Feno TrueFit™ Mouthpiece. Its 18,000 ultra-soft bristles and adaptive design offer a complete clean, brushing your teeth surfaces simultaneously. For optimal performance, replace the TrueFit Mouthpiece every three months.

---

Important: This is a refill item and includes the TrueFit Mouthpiece head only. The Smarthandle and Snap Charger are not included. To purchase the full set, please visit our bundle page.

Product Details

Introducing the TrueFit Mouthpiece, a cornerstone of Feno's complete oral care solution. The TrueFit Mouthpiece features 18,000 ultra-soft nylon bristles affixed to a flexible plate that adapts to your unique dental arch.

The TrueFit Mouthpiece comes in 6 sizes for a personalized full-coverage fit. Find your most comfortable way to clean with the Feno FitKit™ — our proprietary AI-driven app that measures your unique jawline and dental arch to pair you with the right sized mouthpiece.

Shipping

Free shipping within the USA. See more info in checkout.

AI-Powered Fit for a Comprehensive (and Comfortable) Clean

The TrueFit Mouthpiece comes in 7 sizes, each with 18,000 ultra-soft bristles on a flexible plate that adapts to your unique dental arch.

U-shaped toothbrush head with dense white nylon bristles lining the full mouthpiece.

Up to 99% coverage

The TrueFit Mouthpiece gets into tight, hard-to-reach areas to remove plaque.

20 seconds

The full-mouth design simultaneously cleans all teeth in just 20 seconds.

250 strokes

The TrueFit Mouthpiece delivers 250 strokes per cycle for a rapid clean.

Plaque Removal

in just 20 Seconds:

The Results Speak for Themselves

Order Now, Pay Later
Care for your mouth illustrated with a glowing purple dental plaque visualization on teeth against a black background.
1 Week

With electric toothbrush

Even when using the most advanced electric toothbrushes, people often miss areas of the mouth or brush inconsistently and not long enough — all of which adds up to plaque build-up.

Faint magenta specks forming a mouth and teeth outline on a black circle.
1 Week

With Feno Smartbrush™

The Feno Smartbrush significantly reduces the likelihood of human error, achieving near-complete plaque removal and a consistent full-mouth clean in just 20 seconds.

Explore More!

Oral hygiene checkup showing a dental mirror & scaler inspecting clean teeth & healthy gums
3 min read

Gum Guarding: Your First Line of Defense Against Inflammation

View more