Simple method of how to whiten yellow teeth How to whiten yellow teeth?

1, with vinegar. Home vinegar (old vinegar, white vinegar is ok, but not vinegar essence) is contained in your mouth 1 minute to 3 minutes, and then spit it out to brush your teeth. Do it every two months or so.

2. Contains lemon slices. Cover your teeth with lemon slices (or rinse your mouth with lemon juice) after brushing your teeth, which can have a good whitening effect. The principle is that the chemical reaction caused by citric acid decomposes the tartar and stain on the tooth surface.

3. Eat more tropical fruits containing high-dimensional C. Tropical fruits (fruit foods) contain high-dimensional C, which can maintain healthy gums. If it is seriously lacking, the gums will become fragile and prone to illness, resulting in symptoms such as swollen gums, bleeding, loose teeth or falling off.

4, strawberry tooth whitening cream. Preparation materials: one strawberry, 1/2 teaspoons baking powder. Grind strawberries into paste, mix with baking powder, apply the mixture evenly on the surface of teeth with a soft toothbrush, brush off the mixture with toothpaste after 5 minutes, and then rinse your mouth.

5. Eat more green apples. Eating green apples, if you want to prevent teeth from discoloring and turning yellow, the simplest and most effective way is to brush your teeth after every meal. Green apples are rich in cellulose and proper amount of fruit acid, which can remove dirt and whiten teeth.

6. Use mouthguard. If you are worried that your teeth are sensitive to hot and cold food when whitening your teeth at home before whitening, you can use a tooth protector containing potassium nitrate. Protective glue can help to fill small holes in the surface of teeth, so that teeth no longer have sensitive problems.