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. The effect is very good! But even the teeth will feel very sour, and the numbness (feeling will last for about 2 minutes) will not last. Do it often, about once every two months, and it will be fine. Otherwise, it's bad for your teeth. It is an emergency method (such as finding yellow teeth before going out on a date) and can also get rid of bad breath.

2, containing 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 with high-dimensional C.

Tropical fruits (fruit foods) contain high-dimensional C, which can maintain healthy gums. If it is seriously deficient, the gums will become fragile and prone to illness, with symptoms such as swelling, 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.

Step 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. Meanwhile, PiaLieb, a dentist in new york, suggested that eating green apples with low sugar content as snacks after meals can achieve the same cleaning effect as brushing teeth. This is because the rich cellulose and proper amount of fruit acid in green apples can remove dirt and whiten teeth.

Step 6 use tooth protection glue

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.

7. Eat more cheese

Add cheese to the weekly menu. Ladies who love red wine, please pay attention! Drinking red wine often discolors teeth. To change this situation, you can prepare some cheese on the table. The calcium contained in cheese can form a protective film on the surface of teeth to protect teeth from the coloring of red wine pigment.

8, baking soda brushing your teeth

Baking soda is weakly acidic and can decompose tea dirt or smoke dirt on teeth, so it has a certain effect on whitening teeth. Dip a little baking soda powder in your toothbrush and brush your teeth in the right way every day to whiten your teeth. This tooth whitening method is used about 3 times a week, and it is enough to control it for about 2 minutes each time.

9. Brush your teeth with peanut butter

Peanut is a favorite snack for many girls. Do you know it also has the function of whitening teeth? Folk tooth whitening remedies, chew peanuts into paste, don't swallow them, use them as toothpaste, and do this every day, and your teeth will soon turn white!

10, pay attention to choose a toothbrush.

If you want to have white teeth, of course, you should pay attention to every little detail of brushing your teeth, then a toothbrush is a part, and everyone's tooth structure is different. When we go shopping, we will also find that toothbrushes are not all the same. In fact, the sawtooth density and concave-convex degree of toothbrush are determined by the structure of your teeth, so you must find a toothbrush that suits you. Please check online for specific methods. By the way, the toothbrush should also be replaced regularly.