Analysis:

People who come to the stomatology department often complain that the "worm tooth" in their mouth hurts. The saying about "worm teeth" has been circulated among the people in China for a long time. Yang Shiying in the Song Dynasty pointed out: "When teeth are submerged by rancid gas for a long time, insects will breed and teeth will corrode into holes." So, can it be said that the tooth was really bitten by a "bug"? It should be considered that the damage of teeth is not caused by "bugs", but by other factors. With the development of science and technology, people's understanding of dental caries has improved. Foreign scholars first pointed out in 18 19 that dental caries are chemical diseases caused by food fermentation and acid production, and this theory was later confirmed. 1847, another foreign scholar took samples from tooth cavities and observed filamentous microorganisms, and put forward a new theory of tooth decay, that is, bacteriology. He believes that these filaments (bacteria) destroy enamel first, and then dentin. Therefore, it can be considered that teeth are not bitten by insects, but because bacteria (filaments) adhere to the surface of teeth, forming dental plaque, decalcifying enamel and dentin, and gradually forming dental cavities.

Foreign scholars use oral bacteria to cause dental caries in animals, and it has been proved that oral bacteria can cause dental caries. In this way, the folk view of "worm teeth" in China is incorrect, or it lacks scientific basis. With the rapid development of science and technology, people's ability to understand various problems has been continuously improved, and the traditional saying of "worm teeth" will be corrected. If all kinds of propaganda tools are correctly guided, the incorrect theory of "worm tooth" will be corrected soon.