I was very happy to see my braces off finally yesterday but all the happiness went away when I saw my teeth stained like boxes. Even though my teeth are now so well aligned, my smile looks very good but I don't feel like smiling. Pls. advice how will these stains go away. Do I need some whitening toothpaste to clean these stains off my teeth or will regular and proper brushing help? Do I need to go to my dentist again for teeth whitening and pay him????