To clean a toothbrush, soak the bristles in a mixture of hydrogen peroxide and water for several minutes, and then rinse it off. The hydrogen peroxide acts as a disinfectant and kills any germs on the toothbrush.Continue Reading
Mix 1 teaspoon of hydrogen peroxide with 1 cup of water.
Place the bristle end of the toothbrush in the hydrogen peroxide and water mixture, and allow it to soak for five to seven minutes.
Place the toothbrush bristles under warm water to thoroughly rinse off the hydrogen peroxide.