Is it poisonous when a child bites you?

In real life, some people are accidentally bitten by children. They don’t feel anything at the time, just slight bruising and teeth marks. But not long after, the bitten area becomes red and itchy, and even accompanied by symptoms of headache and fever. They go to the hospital for a check-up and find out they are poisoned. In fact, human teeth are not poisonous, but there are bacteria in the mouth. The reason for inflammation is that the bacteria in the mouth infect the skin, so you need to pay attention.

Are human teeth really poisonous?

In fact, human teeth themselves do not contain any toxins. Those who say that they are infected or "poisoned" after being bitten are because of the bacteria in the mouth. There are countless bacteria in the human mouth, both harmful and beneficial. These pathogenic bacteria will not cause disease to you under normal circumstances, but they are pathogenic bacteria to others. When bitten, the bacteria on the teeth enter the blood through the bite wound, thereby increasing the chance of transmission or infection. Therefore, the teeth themselves are not poisonous, but the bacteria attached to the teeth cause wound infection.

Besides, if human teeth were poisonous, wouldn't there be many people dying from tooth poisoning every day?

How poisonous are human teeth?

However, the damage caused by teeth cannot be ignored. According to relevant data, the bite force of crocodiles' teeth is 2,000 kg, that of domestic cats is 200 kg, that of mantis shrimps is 150 kg, that of large dogs is 120 kg, and that of male humans is 45 kg.

The top area of ​​human canines is less than 1mm⊃2;. According to P=f/s, the pressure generated when a person bites is greater than 45Mpa, which is equivalent to 450 atmospheres, and it is easy to bite through the skin of the same kind.

Moreover, the appropriate temperature and humidity in the mouth, as well as food residues that have not been cleaned in time between teeth, have become a breeding ground for bacterial growth. The number of bacteria is greater than that of dogs, including many anaerobic harmful bacteria. When people bite others, bacteria enter the wound through the gaps between the teeth. Viruses contained in saliva may be transmitted through biting and bleeding, such as influenza, hepatitis, HIV, Ebola virus, etc. (but the chance is small)

How to deal with a bite?

Step 1: Disinfection (clean the wound with 3% hydrogen peroxide, because the catalase in human blood decomposes the active oxygen produced by hydrogen peroxide and kills anaerobic harmful bacteria)

Step 2: Follow the doctor's advice and take oral or injected antibiotics for treatment

Step 3: Leave the wound open and do not rush to suture it. If there is suppuration, use Vaseline gauze to drain it.

Step 4: Get tetanus vaccine in time

Can people really bite their tongue to commit suicide? -- After biting off the tongue, the person will go into shock due to severe pain and heavy bleeding, but the possibility of suicide is very low.

What happens if you bite off the hangnails on the edge of your nails? It can easily lead to infection due to oral bacteria.

What should I do if I get a mouth ulcer due to biting the inside of my cheek? --- Take a pill containing B vitamins for faster healing.

What we are discussing today is not only the issue of whether teeth are poisonous or not. What deserves our attention is oral hygiene. We should brush our teeth carefully, rinse our mouths after meals, and clean our teeth regularly, otherwise it is easy to develop a series of oral problems such as gingivitis and periodontitis.