Written by Calvin Bennet · Medically reviewed by Dr. Scott A. Puckett, DDS · Updated August 2026
Both water flossers and string floss are effective ways to clean between your teeth, and the best one is the one you’ll actually use daily. Research is mixed but generally favorable to water flossers for reducing gum bleeding and inflammation, and they’re especially helpful with braces, implants, or trouble using string floss.
Why cleaning between your teeth matters
A toothbrush can’t reach the surfaces between your teeth, where plaque and food collect and gum disease often starts. Cleaning between your teeth once a day — with floss, a water flosser, or interdental brushes — is a core part of preventing cavities and gum disease.
What the research says
The evidence comparing water flossers and string floss is mixed but generally favorable to water flossers for gum health: several studies found they reduce gum bleeding and inflammation as well as or better than string floss, and the ADA grants its Seal of Acceptance to effective products in both categories. Water flossers appear especially helpful for people with braces or implants.
Water flosser — pros and cons
- Pros: easy to use, gentle on gums, great for braces/implants/bridges, good for limited dexterity.
- Cons: costs more, needs counter space and water, less portable.
String floss — pros and cons
- Pros: cheap, portable, proven, precise contact with the tooth surface.
- Cons: harder with braces; many people skip it or use poor technique.
How to choose
- Braces, implants, bridges, or arthritis? Lean water flosser.
- Budget or travel priority? String floss works well used daily with good technique.
- Best of both: many people water floss and use interdental brushes for tight contacts.
Sources
Frequently Asked Questions
Is a water flosser as good as flossing?
For gum health, studies are generally favorable to water flossers, and the ADA accepts both as effective interdental cleaning. The best choice is the one you’ll use daily.
Can a water flosser replace brushing?
No — it cleans between teeth but doesn’t replace twice-daily brushing with fluoride toothpaste.
Are water flossers good for braces?
Yes — they’re often easier and effective for cleaning around brackets and wires.
Related reading
Medical disclaimer: this article is for general education and is not a substitute for professional dental advice. Talk to your dentist about what’s right for you.