How to Use a Water Flosser (Waterpik) the Right Way

By Dr. Boris Zusin · Published September 25, 2026

A water flosser (Waterpik is the best-known brand, though several companies make them) uses a pulsing stream of water to clear plaque and food debris from between teeth and along the gumline. It's a genuinely useful tool — particularly for braces, bridges, implants, and anyone who finds string floss difficult to use consistently — but it works best used correctly and as a complement to brushing, not a full replacement for it.

Setting Up

Fill the reservoir with lukewarm water (comfortable water temperature, not cold straight from the tap, which some people find unpleasant against the gums). Choose the standard jet tip for general use; braces, implant, and periodontal-pocket tips are also available and worth asking about if any of those apply to you.

Start on a Low Pressure Setting

If you're new to a water flosser, start on the lowest pressure setting and work your way up over the first week or two as your gums adjust. Jumping straight to a high setting can cause temporary gum tenderness or, in sensitive areas, minor bleeding that isn't a sign of anything wrong — just too much pressure too soon.

Technique

Lean over the sink, close your lips enough to prevent splashing while still letting water flow out into the sink, and aim the tip at a 90-degree angle to your gumline. Start at the back teeth and work forward, pausing briefly at each space between teeth and just below the gumline before moving to the next. Trace along the gumline on both the outer (cheek-side) and inner (tongue-side) surfaces of your teeth, not just straight between them.

Where It's Especially Useful

• Braces: reaches around brackets and wires that a brush and string floss struggle to fully clean.
• Bridges: the pulsing stream can flush debris from under a pontic, though it works best alongside — not instead of — threading floss under the bridge (see our crown and bridge care guide).
• Implants: effective at clearing the slightly different contour where an implant crown meets the gum.
• Deeper gum pockets: patients with a history of gum disease often find it reaches areas a toothbrush alone can't, though a dedicated periodontal-pocket tip is usually recommended for this specific use — ask at your next visit.

What a Water Flosser Doesn't Replace

A water flosser is an excellent addition to your routine, but current evidence doesn't support it as a full substitute for brushing, and most dentists still recommend some form of string floss, floss threaders, or interdental brushes alongside it for the tightest contacts between teeth, where the water stream alone may not fully disrupt plaque. Think of it as strengthening your routine, not swapping one tool for another.

Cleaning the Unit Itself

Empty and rinse the reservoir after each use rather than leaving water sitting in it, and let it air-dry. Follow the manufacturer's instructions for periodic deeper cleaning of the reservoir and tubing to prevent mineral buildup or mold, particularly if you live somewhere with hard water.

If you're not sure whether a water flosser makes sense for your specific situation — braces, an implant, a bridge, or gum disease history — ask at your next visit, and we're happy to point you toward the right tip and settings for your case.