Get floss sticks
https://www.plackers.com/wp-content/uploads/2018/06/twin-line-oop2.jpg
Don't saw into your gums. Gums don't heal. Slide it up and down against the tooth down to the gum but DO NOT SAW INTO YOUR GUM
Floss before brushing your teeth
If you have braces use the pick to get those teeth
I don't think it's possible to get cavities if you do this (with brushing), and avoid sugars, but don't quote me on that. I am not a dentist.
there doesn't seem to be anything here