Strawberry contains malic acid, which can remove colored substances on the tooth surface and effectively remove tea stains and coffee stains on the tooth surface. Eating strawberries also helps to "grind your teeth" and make your teeth whiter and brighter. Mash strawberries and add half a teaspoon of baking soda to make natural tooth bleach.

2. Apple

As the name implies, apples are rich in malic acid. Chewing apples can stimulate oral saliva, clean and strengthen teeth, and reduce the body's absorption of sugar.

3. Dark green vegetables

Dark green leafy vegetables such as spinach and lettuce contain a series of minerals such as magnesium, which is helpful to the formation of antifouling film on tooth surface and plays an important role in keeping enamel white. It is also rich in carotene, which can be converted into vitamin A to help keep the gums firm.

4. Cheese

Calcium and phosphate can balance the pH value in the oral cavity and prevent the oral cavity from being in an acidic environment conducive to bacterial activity, leading to tooth decay; Regular consumption can increase calcium on the surface of teeth, help strengthen and rebuild enamel, and make teeth stronger.

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Tips for whitening teeth:

1, brush your teeth with warm water.

Before brushing your teeth, you should soak your toothbrush in warm water and then apply toothpaste on it. This can make your toothbrush soft, reduce the abrasion of bristles to teeth, reduce the irritation of toothbrush to gums, and make teeth healthy and white for a long time.

2, lemon juice to clean teeth

After brushing your teeth, wipe each tooth with lemon juice. After brushing your teeth every night, rub it on your teeth with gauze dipped in lemon juice, and your teeth will become white and bright. Lemon has a strong cleaning power and whitening effect, and contains vitamin C, which can strengthen the roots of teeth. It is a good way to whiten teeth.

References:

People's Network-Whitening Teeth Eight kinds of foods make teeth whiter and whiter.