How to get whiter teeth
1. Eat an apple. When you bite into an apple it actually brightens your teeth by lifting off the film that can make them look dingy. Use your front teeth to bite into the apple, sinking them in all the way up to your gums. This is a good technique to use if you're out during the day and need a quick way to brighten your smile.
2. Chew sugarless whitening gum. Buy a pack from the drugstore and chew a few pieces during the day. The gum will remove bits of food from your teeth and temporarily brighten them up.
3. Rinse with peroxide. Measure a few tablespoons of hydrogen peroxide into a cup, pour it into your mouth, and swish for one minute. Spit it out into the sink and rinse your mouth with clean water.
4. Brush and floss. Brushing and flossing immediately lifts stains that have recently been left on your teeth. Use a whitening toothpaste and brush well, focusing on the front of your teeth to remove the most obvious stains and film.