In the past, the ancients liked all kinds of fat, tender and oily things, which should be related to bad dental diseases. When Song Yu inspired Qu Yuan's soul, he wrote a prescription called "The tendons of fat cows are more fragrant". You don't have to bite this kind of thing, just bite it. So far, the old man and the old lady have been eating very soft, just giving their teeth a holiday and not doing anything with a knife. 16 15, one year before Tokugawa Ieyasu died, the Battle of Osaka was launched to solve the Toyotomi family and put Japan under the Tokugawa shogunate before his old man closed his eyes. On the same day, the other party's Sanada Yukimura bravely raided and was outnumbered, almost completing the myth reversal. From then on, the Japanese regarded Xue Cun as "the first soldier of Japan in Tian Zhen" and regarded him as Zhao Yun of Japan. But the fact is that his old man is 48 years old, because he has lived in seclusion in Jiudushan for too long, suffering from malnutrition, his head is bald and his teeth are almost falling out. Children are the happiest. Not a few years old, the deciduous teeth were teetering and fell out one day. I am very happy. I ran home and showed it to my mother like a medal: "I fell!" " Mother encouraged: "well, we are going to grow new teeth, and the child has grown up!" ""Dirty is now a curse word.

But at first, the word "dirty" means that after eating in the room, the mouth is not clean and stinks; Swearing is a person with irregular teeth. If so, filth is a mouthful of teeth: if you don't wash it, it's untidy, and it's painful to smell it. So, how to clean your teeth? In A Dream of Red Mansions, Jia's rules are heavy. Before eating, everyone gargles with tea, then washes their hands and serves tea. Jia Baoyu not only washed his mouth with tea, but also wiped his teeth: he used green salt. Ancient people didn't necessarily know that salt and tea contained fluorine, which could diminish inflammation and kill bacteria, but they followed experience and used it properly. Sun Simiao said: "One twist of salt per denier is in your mouth, and warm water is in it", so you can keep your mouth shut. I don't know how many smugglers have been saved by Grandpa Sun's words. A smarter salt dealer should sell a truckload of salt, send a prescription from Sun Simiao, and then shout, "Our goal is-no tooth decay!" People in the Song Dynasty thought about changing the pattern, such as boiling branches such as willow, Sophora japonica and mulberry in water, adding ginger juice and mixing them with other things to wash their teeth-it was better than salt in the end. So when A Dream of Red Mansions was written, everyone was still eating green salt and tea.