First: Brush your teeth more than twice a day.
Many people are used to brushing their teeth only in the morning, and then they will do it at noon and evening. Actually, this habit is not good. If you want to keep your teeth white, it is necessary to brush them twice a day, that is to say, you must brush your teeth in the morning and evening, and you can brush them at noon if you can. Because bacteria in the mouth grow very fast, especially after eating, and these bacteria will cause corrosiveness to our teeth, it is normal for people who don't like brushing their teeth to turn yellow.
Second: it is very important to choose the right toothpaste.
Toothpaste is not as expensive as possible. What suits you is the best. Some people often blindly follow the trend when choosing toothpaste. Results After brushing teeth, the feeling effect was not as good as expected. The biggest reason is that toothpaste doesn't match you. Only toothpaste that suits you can ensure oral health and white teeth.
Last but not least, eat more fruits and less snacks. There is also a lot of oxalic acid in fruit. And these substances can effectively clean our teeth. People who often eat fruit generally have white teeth.