Teeth-whitening has become one of the most popular treatments in aesthetic dentistry, according to a 2009 report by the American Dental Association. There are whitening toothpastes, gels, strips and even "gums" that profess to whiten teeth to a certain degree. While there are many over-the-counter products, you can whiten your smile with an at-home treatment by using hydrogen peroxide, which is inexpensive and used in many teeth-bleaching products.
Gargle with hydrogen peroxide twice daily. Just take 1 tsp. of hydrogen peroxide and swish it around in your mouth for about one minute. Spit it out and then brush your teeth with a fluoride toothpaste.
Make a paste with hydrogen peroxide and baking soda. Take 2 tsp. of baking soda and mix it with 2 tsp. of peroxide. Apply the paste to your teeth with your toothbrush or a finger. Allow it to sit on your teeth for two minutes for extra whitening. Rinse your mouth after two minutes. Brush with a fluoride toothpaste after rinsing.
Make a toothpaste with peroxide, salt and baking soda. Mix 3 tsp. of hydrogen peroxide with 2 tsp. of baking soda. Add 1/2 tsp. of table salt. Add a drop of toothpaste and mix evenly. Then brush your teeth. You can leave the paste in your mouth for two minutes to achieve more whitening.
Dab some hydrogen peroxide on your teeth directly. Just dip a cotton swab into the peroxide. Rub the swab onto the teeth. Leave on the teeth for two minutes. Brush with a fluoride toothpaste.
Hydrogen peroxide is available at drugstores and comes in a 3 percent solution.
Do not swallow hydrogen peroxide.