Tongue Scrapers for Bad Breath: Worth Adding to Your Routine?

Tongue scrapers are cheap and simple, which makes them easy to overlook. Here is what a 2026 clinical guideline on bad breath says about them.

The short version

• Most bad breath comes from the mouth. About 80% to 90% of cases start there, from gum disease, tongue coating, tooth problems and other mouth conditions. Only about 2% come from digestive, metabolic or hormone conditions.¹
• The coating is thickest at the back of the tongue, where bacteria break down proteins into smelly sulfur gases.¹
• Cleaning works best as a package. Brushing, rinsing and tongue cleaning together were most effective.¹
• Scrapers beat toothbrushes for the tongue. The guideline says tongue scrapers reduced sulfur gas levels more than toothbrushes, by about 75%.¹
• The guideline’s daily advice: brush at least twice a day, floss daily and use a tongue scraper.¹

How to use one

1. Reach toward the back of the tongue gently, as far as is comfortable.
2. Pull forward with light pressure, and rinse the scraper after each pass.
3. Repeat a few times, then rinse your mouth.
4. Don’t press hard enough to hurt or cause bleeding.
5. Clean the scraper and let it dry between uses.

Other helpers

The guideline lists toothpastes with stannous fluoride or zinc, and mouthwashes with chlorhexidine, cetylpyridinium chloride or zinc, as add-ons.¹ Our guides to mouthwash for bad breath and probiotic lozenges cover these.

When scraping isn’t enough

If breath stays bad despite good care, the guideline says to look for other causes.¹ Gum disease is a common one. A coated tongue can also have other causes. Our articles on a white tongue and hairy tongue explain.

Try: “I brush, floss and use a tongue scraper, but my breath is still bad. Can you check my gums and tell me whether something else might be causing it?”

Is It My Breath? includes a visit script. Use it to note your routine, when breath is worst and what you’d like your dentist to check.