With the rapid advancement of the times, people have begun to pay more and more attention to their personal image, and have also attached great importance to personal hygiene. Things such as toothpaste and hand sanitizer have become daily necessities for modern people.
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According to “Essential Recipes”, written by the famous ancient Chinese doctor, Sun Simiao, after getting up every morning, it is important to put some salt in your mouth and to hold it there for a while with warm water. This will make your teeth firm. Later, the ancient Chinese no longer used salt to clean their teeth, because they had then discovered an exclusive recipe — a tooth powder. Such tooth powder not only cleaned and maintained teeth, but also removed moisture and heat from the body. In addition, salt water, tea water, drinks, and more mysterious substances were also used as mouthwash.
Then someone invented brushing their teeth with willow branches. The method is to first take a small swath of willow branches and rinse it clean. Then one end is chewed until the branch fibers are exposed and the end becomes hairy. In this way, a simple toothbrush is achieved. After that, the toothbrush was dipped in a little of that magic tooth powder. Brushing teeth complete; very simple and low in cost.
Later, toothbrushes were upgraded, with the wise Chinese using animal bristles to make toothbrushes that were very similar to those of today, most of which employing pig bristles. Although the texture was a bit hard, it was cheap. Rich people tended to use horse bristles; softer and more comfortable for brushing teeth.