I actually asked my dentist about water flossing lately and she told me that in her experience it's not as effective at preventing plaque, and recommended regular flossing.
But for regular, the little brackets with floss already on them work great, much better than freehand thread.
That's where this insect family gets its latin name: Dermaptera, i.e. "skin wing", as the wings are usually hidden under a leathery flap. They also are super complex in the way they unfold from under these flaps.
Also, earwigs are completely harmless and cool and should be left alone. If anything, they can be beneficial in gardens, as they hunt other, harmful insects.