What should I do if my teeth cannot be whitened?

1. Sprinkle some salt on the toothpaste every time you brush your teeth to whiten your teeth.

2. Add a little soda to the toothpaste when brushing your teeth. After brushing three times, your teeth will be as white as jade and the tooth rust will fall off naturally.

3. Dry the orange peel, grind it into powder, mix it with toothpaste and brush your teeth. Your teeth can be whitened quickly.

4. When brushing your teeth, use some yeast powder on your toothbrush to help whiten your teeth.

6. After brushing your teeth, apply lemon juice to each tooth to whiten your teeth.

7. Going to the hospital for teeth cleaning is very effective, but you should use desensitizing toothpaste after teeth cleaning to reduce discomfort. Do not come into contact with heavy-colored foods or seasonings such as soy sauce within 2 months after teeth cleaning. .

8. If your teeth are yellow from the inside of the teeth, it is impossible to whiten them and you can only use other methods. Because the outermost part of the teeth is enamel, which is the hardest tissue in the human body. If this is not the case, you can brush your teeth correctly and use whitening toothpaste.

9. Be sure to brush your teeth frequently, preferably in the morning and evening, and brush your teeth for a longer time each time. Each brushing must last for more than 3 minutes.

10. You can take a mouthful of vinegar at home and spit it out after about two minutes. This effect is more obvious, but don’t do this often.

11. You can buy mouthwash and rinse your mouth with it every time after eating. It can clean your mouth, but you must insist on it.

12. Drinking more water can whiten your teeth and reduce bad breath. Each person should drink at least 1,000 ml of plain water every day, of which the intake of mineral water should not exceed 300 ml. The remaining 700 ml can be consumed as purified water or boiled tap water.

13. Some people suffer from diseases due to long-term use of some drugs such as tetracycline staining, or long-term drinking of unclean water, resulting in local tooth damage and yellowing. This treatment is more troublesome, and general dentistry The doctor recommended braces or bleaching.

14. If some people have yellow teeth since birth, most of them are caused by genetic factors. In this case, you can only try bleaching or braces. General treatment has little effect.

16. Brushing your teeth incorrectly. The correct way to brush your teeth is to brush back and forth on the dental table to remove the things on the dental table. The inside and outside of the teeth need to be brushed up and down.

17. The brushing intensity should not be too light or too heavy. Too heavy a brush will cause damage to the gums, and too light a brush will not be able to remove the things between the teeth.

18. A hard-bristled toothbrush is much better than a soft-bristled toothbrush. However, hard-bristled toothbrushes have a greater wear effect on teeth. Regular use will damage the enamel on the tooth surface and cause pigmentation. For people who often use hard-bristled toothbrushes, even if their teeth are hard, their color will not be too white! Therefore, it is recommended to prepare two soft and hard toothbrushes, and use a hard-bristled toothbrush every three days to thoroughly clean the tartar. But never use a hard-bristled toothbrush during your menstrual period!

19. As long as you pay attention to teeth cleaning, it is enough for most people to clean their teeth once a year. If you smoke often, you need to clean your teeth 2-3 times a year. Experts point out that excessive flossing can lead to enlarged gaps between teeth, tooth sensitivity, and food residues and stains that can easily adhere to the tooth surface.

20. Although medicated toothpaste can control the production of pathogenic bacteria, it can also destroy the ecological balance in the oral cavity and cause new infections. What's more, the alkaloids in medicated toothpaste can damage the enamel on the tooth surface and make the teeth lose their luster!

What causes yellow teeth?

1. Physiological color changes

As people age and are used for a long time, their teeth will gradually change slightly in color. Just like your own skin, it is white and smooth when you are young, but gradually becomes darker as you get older. These are inevitable.

Don’t pay too much attention to such color changes. If you are very concerned about your appearance, you can use teeth whitening methods to improve your appearance, just like skin beauty.

2. Endogenous yellow teeth

Teeth are affected by certain elements, and the pigment is not on the tooth surface but in the tooth tissue. There are two main types: dental fluorosis and tetracycline.

Dental fluorosis: This kind of dental fluorosis is mainly caused by living in areas with high fluoride in drinking water before the age of seven. The pigment is in the enamel on the surface of the teeth, appearing as yellowish-brown plaques. In severe cases, there are uneven defects on the tooth surface, which are generally most obvious on the upper incisors, thus seriously affecting the appearance.

Tetracycline teeth: This type of teeth is mainly related to taking tetracycline drugs before the age of eight. Tetracycline molecules can combine with calcium in the dental tissue to form an extremely stable complex, which is deposited in the dental tissue and causes teeth to be stained. The entire mouth of teeth can be brown-gray or brown-yellow.

3. Exogenous yellow teeth

4. Drug and food damage

Drugs (such as tetracycline) or food (such as water sources) suffered during the tooth development stage The irreversible damage caused by dental fluorosis).

5. Naturally yellow teeth

This is determined by the genes of yellow people. Genes determine that the teeth of yellow people are yellower than those of white people and black people.