Water Flosser or String Floss? Use the One You Will Use

Both tools clean where a toothbrush cannot reach. They are not identical, and for many patients the best answer is using each for what it does well.

January 22, 2026 · 4 min read · Dr. Nicki Tajalli, D.D.S.

What string floss does best

Floss physically scrapes the biofilm off the flat surfaces between teeth. Where contacts are tight, nothing else disrupts that sticky layer as reliably. C-shape the floss around each tooth and slide it just under the gum.

What a water flosser does best

Pulsed water is excellent around implants, bridges, crowded teeth, and orthodontic hardware, and it reduces gum bleeding quickly for patients who find floss unmanageable. Patients with dexterity limitations often see the biggest improvement.

The practical recommendation

If you floss reliably, keep going and add a water flosser only if you have implants or bridgework. If flossing is not happening, a water flosser you actually use nightly is far better than floss sitting in the drawer.

Key takeaways

  • Consistency beats tool choice.
  • Water flossers shine around implants, bridges, and braces.
  • Tight contacts still need string floss.

This article is general information, not a diagnosis. Your situation deserves an exam.