I get out a small bowl of baking soda, and a small bowl of lemon juice. Dip my brush in the juice, then the soda and scrub away. Repeat a time or two. This won't be as drastic as the dentist's formula, but it does help. I do it 2x a week.<br><br>
I'm sure you could sub vinegar for the lemon juice, but I think it would taste not so nice.<br><br>
Good luck, mama!