Teeth are a vital part of our body, without them we simply could not chew food. However, this is true not only for people, but for most animals. Lonely elephants, living in the wild until old years, for example, often die of hunger, since over the years their teeth are squashed so much that they are unable to chew hard leaves that serve as land giants the main food.
Dental calcium is 99% of the total amount of this element present in the human body.
The structure of the enamel of human teeth, as scientists have shown, completely coincides with the composition of the enamel of sharks.
Tooth enamel – the most durable tissue of the human body, able to withstand even intense mechanical effects. For this reason, drill bits are made of diamonds.
Human teeth can not be restored and regenerated – the damaged tooth of an adult can only be cured or removed. Many animals, on the other hand, easily manage without the services of dentists: the teeth of sharks grow up again as they get soaked, and elephants have their teeth renewed up to 9 times in 60 years of life.
Children’s teeth were called “dairy” due to the ancient Greek healer Hippocrates, who believed that the first change of teeth occurs just because of the use of babies milk. He was not so far from the truth, because in milk contains a large amount of calcium, which is necessary for dental health.
The human chewing muscles are the most powerful muscles in the body. Closed jaws can exert pressure up to 3.5 centners, but such efforts can not withstand the teeth. Therefore, in everyday life, the effort of the jaws does not exceed 10-15 kilograms.
Operations for implantation of teeth were carried out already in ancient Egypt – transplanted teeth, probably taken from slaves and dead men, were found in the jaws of pharaohs.
After the Battle of Waterloo, the teeth of dead soldiers were used by dentists from different countries as natural implants.
Saliva protects the tooth enamel from being too alkaline or acidic. It also contains antibacterial substances that prevent the development of caries.
In the XIX century, a wealthy aristocrat bought the tooth of the famous physicist Isaac Newton for about 40 thousand dollars at the current rate. He put his expensive purchase into the gold ring.
In South America, an ancient Inca was discovered, the jaw of which consisted entirely of artificial teeth – the materials for the prosthesis were amethysts and quartz.
The Chinese leader Mao Zedong considered brushing his teeth a waste of time – an ideologist of communism preferred to rinse his mouth and drink green tea so that there was no unpleasant smell.
According to popular legends, the Buddha had 40 teeth, and Adam – 30. I think that’s why in the month of 30 days.
Scientists have proved that chocolate prevents caries.
The jaw of the cochlea consists of 25,000 teeth.
A study by Japanese scientists showed that people who brush their teeth at least 3 times a day are less likely to suffer from obesity.
Since the middle of the last century, more than 3000 toothbrush models have been invented – for example, with a timer or three heads at a time, to brush your teeth from all sides simultaneously.
The doctors found a connection between healthy teeth and good memory.