Q:

How do you whiten teeth with hydrogen peroxide?

A:

Quick Answer

To whiten teeth with hydrogen peroxide, select a solution that is 3 percent hydrogen peroxide. Make toothpaste by combining hydrogen peroxide with baking soda, and brush as usual. Rinse your mouth by swishing hydrogen peroxide around in your mouth after brushing.

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Full Answer

  1. Choose a 3 percent hydrogen peroxide solution

    Not all hydrogen peroxide is safe for oral use. Choose a solution that is 3 percent hydrogen peroxide. Look for hydrogen peroxide in the first-aid or wound-care department of grocery and drug stores.

  2. Make the toothpaste

    Mix equal parts hydrogen peroxide and baking soda in a small bowl or container. Dip your toothbrush in the mixture, and brush your teeth as you do with regular toothpaste. The baking soda acts as an abrasive cleaner for the teeth, removing plaque and tartar from the surface. Hydrogen peroxide works as a bleaching agent, making teeth whiter.

  3. Rinse with hydrogen peroxide

    Once you’re done brushing, swish a small amount of the 3 percent hydrogen peroxide solution around in your mouth to remove the baking soda residue, kill bacteria and provide extra whitening. Do not swallow the hydrogen peroxide solution, as this can make you sick. Spit the solution out, and rinse your mouth out with water.

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