[header] How to clean your teeth naturally [title] Use a strawberry paste. [step] The malic acid in strawberries is a natural emulsifier that helps removes surface stains and plaque. To make your own whitening toothpaste, simply mash a 2-3 strawberries in a cup and add ½ a teaspoon of baking soda to clean your teeth. 
This paste can be used a few times per week with improved results over a longer period of use. Since the malic and citric acid in strawberries can erode enamel, use this remedy in conjunction with a fluoride toothpaste.