Eat your vegetables! It's not just a dinner time directive from mom -- it's also a fantastic way to maintain a healthy smile.
Crunchy vegetables such as raw celery and carrots, and crispy fruits like raw apples and pears are naturally abrasive, which means they'll polish your teeth and remove stains from your tooth enamel -- and they'll do it without harming or eroding enamel, the outermost layer of a tooth.
Crunchy fruits and veggies also encourage your mouth to produce saliva, which is important because saliva helps protect teeth from cavity-causing bacteria. Saliva also contains compounds called surfactants as well as enzymes that give it detergent properties, which means the more saliva in your mouth, the fewer stains on your teeth.