Many foreigners believe that Vietnamese people have blackened their teeth because of eat areca. In fact, eat areca is not necessarily related to the habit of dyeing hair. Only these two customs have the function of strengthening teeth.
Vietnamese women's teeth are black and shiny, which is caused by the use of drugs. In order to dye their teeth, Vietnamese people have to endure a little pain. According to the Vietnamese, because the substances used to dye teeth are hot and spicy, the lips and tongue are swollen. After dyeing your teeth, you must abstain from rice and hard food for half a month. You can only eat soft food such as porridge or do not chew food that is easy to swallow, such as rice noodles. Furthermore, you should also avoid chewing hard food in order to make the medicine effective during tooth dyeing.
Why do Vietnamese have to endure the pain of blackening their white teeth? It is driven by aesthetic point of view. According to the ancient custom of Vietnam, anyone who wants to keep white teeth will be laughed at by the world. For example, "white teeth like canine teeth" and "white teeth like blunt teeth" in folk songs all mean contempt. Therefore, black delusion is one of the important factors that make girls and young women beautiful. As the saying goes: "Marriage should be equal to the husband's marriage; Face kung fu, black peach cheeks. " No matter how beautiful a person is, if his teeth are not black or bright, then his beauty will be greatly reduced. In the past, Vietnamese, regardless of gender, had to dye their teeth at the age of 16 and 17. Now, although the habit of dyeing hair in Vietnam has been greatly weakened, women can still see the habit of keeping dyeing hair in rural areas.