My son started to lose teeth at 4. If the tooth was super lose like hanging by a string I would take a piece of white bread take off the crust and roll into a ball. My son would bite into it and viola!! tooth would be in the bread, no pain. If it falls out in her sleep and she swallows it she won't choke so no worries. I did the floss thing as well as a kid but my son was NOT interested in tying off the tooth. The bread way was easier for him and painless.