The earliest oral sanitary ware in China is Yang Liuzhi. In the late Tang Dynasty, Yang Liuzhi was immersed in water. When necessary, willow fibers in Yang Liuzhi will be spent, just like small wooden combs and convenient toothbrushes. The old saying "chewing gum in the morning" is the source.

In the Song Dynasty, a substitute similar to toothpaste appeared. The ancients boiled "ancient toothpaste" with poria cocos and other medicinal materials, which was used to gargle in the early days. If you are afraid of not cleaning up, you can use your fingers instead of the current toothbrush. Otherwise, it's Yang Liuzhi mentioned earlier. You can clean your teeth with ancient toothpaste.

According to ancient records, by the Southern Song Dynasty, there were already shops specializing in making and selling toothbrushes in the city. At that time, the toothbrush was made of bone, horn, bamboo, wood and other materials, with two rows of small holes drilled in the head and a ponytail planted on it. It is very close to the modern toothbrush.

And green salt cloth or fingers. Otherwise, dip the ancient toothbrush mentioned above, wipe your teeth, and then rinse your mouth with water.

In ancient times, there was a kind of cosmetics that was very popular. Black pool, bucket support, is to dye teeth black for beauty. I dare not think ~ the aesthetic concept is much worse than it is now. Maybe it's good. It's all black anyway, once and for all. What should I consider when washing my teeth ~