What is the earliest dental sanitary ware?

Most modern people understand the importance of dental care. In fact, in ancient China, there were high requirements for oral cavity and teeth cleaning, beauty, diseases and health care. For example, in The Book of Songs Feng Wei Shuo Ren, the beauty's teeth are described as "like rhinoceros", which means that the teeth should be as neat and white as gourd seeds. On the contrary, uneven teeth are regarded as quarrels, those with uneven occlusion are called filth, and those with uneven arrangement are called caries, which are all regarded as pathological. It can be seen that ancient people paid attention to dental health.

The earliest oral sanitary ware in China is Yang Liuzhi. In the late Tang Dynasty, Yang Liuzhi was soaked in water. When in use, they bite Yang Liuzhi with their teeth, and willow fibers inside will come out, like tiny wooden comb teeth, which is a convenient toothbrush. This is how the old saying "chew gum in the morning" comes from. /kloc-the archaeological excavation in 0/954 and the two bone toothbrush handles unearthed from Liao tomb in 959 A.D. are enough to show that China used toothbrushes to clean teeth for at least 1000 years. 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 holes drilled in the head and ponytails planted on it. It is very close to the modern toothbrush.

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 being dirty, you can use your fingers instead of the current toothbrush. Otherwise, you can use the Yang Liuzhi mentioned above and dip it in ancient toothpaste to clean your teeth. You can also use cloth, fingers or the ancient toothbrush mentioned above, dip in green salt, wipe your teeth, and then rinse your mouth with clear water.

According to Zhang Gao's medical theory, Liu Jun in Nanliang has a ballad called "The Song of Tongue Bearded on Huashan Monument in Xiyue", which says: "Pig teeth and ginger horns, hemp in the west, Sichuan land. Mule, jujube, lotus, Sophora japonica and asarum lotus leaf should be equal. Green salt burning is the same as calcination, and it will be better in the future. Wipe your teeth, your teeth are black, but who knows there are fairy prescriptions in the world. " As early as the 6th century A.D., Nanliang carved a "black beard" on a stone tablet, which was made of many drugs such as Gleditsia sinensis, lotus leaves and green salt. Has the effects of whitening teeth, retaining fragrance, diminishing inflammation and relieving pain, blackening hair and caring skin. The effect is even more magical than the current drug toothpaste. It can be said that it is the earliest medicinal toothpaste in China and even in the world.