Why are teeth made so painful?
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Why do teeth feel pain unlike hair and nails when thinking of teeth as 'tools' like knives and forks? The question should come. Julius Mantz, director of dental hygiene programs at the San Juan University in the United States, explains this question, along with how teeth can feel painful.
Why are teeth so sensitive to pain? | Live Science
https://www.livescience.com/why-teeth-feel-pain.html
According to Mantz, teeth are becoming painful 'a defense mechanism in case the chopper (cutter) is damaged'. 'If you eat too hot or too cold, or if your teeth are worn away so that the underlying tissue is exposed, pain will occur. When pain occurs, people stop using the teeth. But this is the defense mechanism above all, 'said Mantz. If your teeth don't feel pain, people will continue to use them to get serious damage, even if they have problems. In particular, unlike crocodile and sharks, humans do not regrow and cannot be replaced when grown up, so such a defense mechanism is necessary.
The teeth have a three-layer structure of enamel , dentin, and pulp from the outside, and only the innermost pulp actually feels pain. Enamel is not a living cell, dentin is a living cell, but it doesn't feel pain because it has no nerves. However, dentin contains liquid, and the movement of the liquid can sometimes stimulate the pulp with nerves. The pulp has both blood vessels and nerves, but since it does not feel the temperature, the stimulus when drinking a cold drink is perceived as 'pain'.
by Sam Fentress
Also exists between the root and the alveolar bone, sensing the position of the teeth periodontal ligament (periodontal ligament) also can feel the pain. I feel pain when performing orthodontics because the periodontal ligament senses irritation. Because both the pulp and periodontal ligament feel pain, it can be difficult to know what the pain is coming from, Mr. Mantz said. The dentist is there to find out the cause of such pain.
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