sonicare
Prices?
Quit being a lazy fuck and just floss and brush your teeth.This shit ain't rocket science.
Technology helps tho. People went from little sticks to tooth picks to floss then to water picks.
I dated a dental hygentist for a while she said for some people Sonic-Care or whatever was good and for others it wasn't necessary...she did not personally use it and had a flawless set of teeth.