To use baking soda to bleach teeth, mix water and baking soda in a small bowl to create a smooth paste, advises Organics. Dip your toothbrush into the baking soda, and brush your teeth for two minutes.
Baking soda, also known as sodium bicarbonate, contains a chemical that acts as a mild abrasive, as stated by Colgate-Palmolive. This mild abrasive helps to remove surface stains and makes teeth appear whiter. Baking soda effectively removes plaque and stains that cause discoloration.
Baking soda can be mixed crushed strawberries to create a teeth-whitening paste, states Health.com. You can also mix baking soda with freshly squeezed lemon juice to create a teeth-whitening paste, according to Dr. Oz. Alternatively, combine 1 tablespoon of baking soda with 2 tablespoons of hydrogen peroxide to create a more powerful teeth-whitening paste, suggests Colgate-Palmolive.
Though baking soda whitens teeth, it is important to limit its use to no more than two or three times a week, according to Colgate-Palmolive. Baking soda can break down enamel if you use it too frequently, and this causes teeth sensitivity. If you have braces that use orthodontics glue or you use a permanent retainer, avoid baking soda, as it softens this glue.