No, a water flosser does not fully replace floss and interdental brushes, but it is a good addition. The jet of water rinses food debris out of the spaces between your teeth and around braces, bridges and implants. It removes firm plaque less well than a brush. In the 2019 Cochrane Collaboration review, water flossers reduced gum inflammation only in the short term, and there was no difference for plaque. A water flosser helps most where small brushes are hard to use.
Updated: 9 November 2026
Who a water flosser is worth it for
- people with fixed braces
- people with bridges or implants
- people who find floss or small brushes difficult, for example because of their hands
- anyone who enjoys the fresh feeling after using one
How to use it properly
- Start low and increase the pressure slowly until it feels comfortable.
- Guide the jet along the gum line, from space to space, at a slight angle.
- Lukewarm water is more comfortable, especially with sensitive teeth.
- Lean over the basin and keep your mouth slightly open.
- Clean the device regularly and let the tank dry.
The best combination
- Brush twice a day, ideally with an electric toothbrush.
- Clean between your teeth once a day with interdental brushes or floss.
- If you like: use the water flosser to finish, especially with braces, bridges and implants.
- Have a dental hygiene appointment regularly, every six months for most people.
Which interdental care suits you is explained in “Floss or interdental brushes?”.
