How do you tell when your teeth is clean?
they literally should squeak. When I use my good sonic toothbrush its just amazing it feels like I just came from the dentist and I can hear my tongue squeak over my teeth. It feels great!
When they are white and sparkly :D
You teeth *ARE* clean after you brush, floss, and use mouthwash.
go to the sun and tell a friend or someone if its clear white teeth.
when it is white already. try to look at the mirror