Snapping floss

Floss that snaps between teeth is usually being forced through a tight contact or catching on an edge, and changing the technique can prevent gum injury.

The contact point is where neighbouring teeth touch. A rough filling edge, crown margin, calculus deposit, crowded tooth, or frayed floss can make thread catch or tear.

Guide floss through with a back-and-forth motion, then curve it around each tooth in a C shape. Try a suitable thickness or interdental brush after assessment.

Seek care if floss repeatedly shreds at one location, causes bleeding, or cannot pass; do not force it past a painful contact.

Ask what structure is affected, which examination is needed, and which treatment or product fits your teeth, gums, appliance, and medical history.