My dad's dentist had a picture on the wall that said "You only have to floss between the teeth you want to keep". When I floss after not doing so for a long ti

My dad's dentist had a picture on the wall that said "You only have to floss between the teeth you want to keep". When I floss after not doing so for a long time I get a whiff and taste of decaying matter. It is disgusting. Good enough evidence for me, though I still don't floss often :(