Floss can become wedged in a tight contact, catch on an uneven surface or begin to fray. Most importantly, do not try to pull it out with a sudden jerk toward the gum.
What should you do first?
Move the floss gently from side to side and try to withdraw it along the same path. If this does not help, it may be easier to release one end carefully and slide the floss out sideways.
What should you avoid?
Do not use sharp objects or metal tools to pick out the floss. They can damage the gum or tooth surface.
If the problem recurs in the same place
Repeated fraying or trapping in one space may need a dental check, especially near a filling or crown or when pain occurs.
Also read how to clean tight spaces and the basics of correct flossing.
