Westerners attach more importance to teeth than most people think. You can have irregular teeth or big teeth, but you must keep your teeth clean. China people may be the first country to brush their teeth. But the importance attached to teeth is much lower than that of westerners. So American TV shows often go to the dentist and floss. How can I do nothing and go to the dentist regularly? In China, you rarely have to wait in line to see a dentist. Therefore, when your teeth are healthy, it is easy to turn white. Don't wash your teeth.
Forget it. It's time to take medicine for toothache . . .