Flossing Guide
Guide
The Flossing Guide
String floss, picks, interdental brushes, and water flossers — what the evidence actually says, how to use each one, and 20 flossing routines for real-world situations.
Why flossing matters
Interdental cleaning reaches about 40% of every tooth's surface that a brush cannot. It's not a moral duty — it's a mechanical necessity. The gum tissue between the teeth is where gingivitis and early periodontitis most often begin.
String floss — how to do it well
- Use about 18 inches (45 cm) of floss.
- Wind most of it around one middle finger, and a small amount around the other.
- Hold about an inch taut between thumbs and index fingers.
- Guide it gently between teeth — never snap it down onto the gum.
- Curve it around each tooth in a "C" shape and slide it up and down against the tooth surface.
- Move to a clean section of floss for each pair of teeth.
Alternatives, honestly compared
| Tool | Good for | Not ideal for |
|---|---|---|
| String floss | Tight contacts, most adults | People with poor dexterity, orthodontics |
| Floss picks | Convenience, travel, one-handed use | Adapting shape around each tooth |
| Interdental brushes | Wider spaces, exposed root surfaces, implants | Tight contacts between healthy teeth |
| Water flossers | Braces, bridges, arthritis, gum pockets | Full replacement for tight contacts |
| Air flossers | People who dislike other tools | Evidence is mixed; treat as supplement |
Common mistakes
- Snapping the floss onto the gum, causing cuts.
- Skipping the back sides of the last molars.
- Using one section of floss for the whole mouth.
- Only flossing when something feels stuck.
- Assuming a water flosser replaces mechanical contact against the tooth surface.
20 interdental routines
- Nightly string floss — the default.
- Nightly floss picks — convenience without excuses.
- Interdental brushes plus string floss for mixed spacing.
- Water flosser after every meal for braces wearers.
- Water flosser plus string floss for periodontal patients.
- Threader floss under bridges.
- Super floss for gaps under implants.
- Post-meal picks and a proper night session.
- Morning-only for people who tend to fall asleep first.
- Twice-daily interdental brushing for wide spaces.
- Once-a-week disclosing check to find missed sites.
- Standing-mirror flossing at the kitchen counter.
- Shower flossing for the routine-averse (as long as it happens).
- Combined water flosser then string session at night.
- Waxed floss for tight contacts, unwaxed for spacing.
- Ribbon floss for sensitive gums.
- Threader picks for retainers and permanent wires.
- Kid-friendly picks in colorful shapes to build habit.
- Traveler's kit with picks in each bag.
- Post-orthodontics routine — string floss and interdental brushes for the newly-close teeth.