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The number of human teeth is between 28 and 32.
The 28 teeth are the most basic for adults, and the other four are wisdom teeth that erupt occasionally.
The 28 teeth are symmetrical up and down, each half of the upper and lower two rows have 2 incisors, 1 canine, 2 bicuspids and 3 molars, the four molars in the back row are also called wisdom teeth, each person has a different number of wisdom teeth, and some people may not have wisdom teeth in their lifetime. Wisdom teeth usually grow at an age of 18-30 years old, and if you don't have wisdom teeth before the age of 30, they will basically not grow at all.
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Adults have between 28 and 32 teeth under normal conditions if there are no chipped teeth and extra teeth. Including four wisdom teeth, there are 32 baby teeth, and the child will start to grow baby teeth about a month after birth, and 20 baby teeth will grow around the age of 2 and a half. It was not until the age of 6 that the teeth began to be replaced, and the first molars, commonly known as the sixth instar teeth, were replaced until the age of 14, with a total of 28 teeth.
Between the ages of 18 and 25, wisdom teeth begin to grow, and the growth of wisdom teeth varies from person to person. There are 14-16 in the upper jaw and 14-16 in the lower jaw.
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Humans have two sets of teeth, one for baby teeth and one for permanent teeth. Normally, baby teeth erupt gradually between 6 months and 2 1/2 years of age, with a total of 20 baby teeth. Replacement teeth during the age of 6-12, around the age of 13, there will be 28 permanent teeth in the mouth, generally during the age of 18-25, some patients will have wisdom teeth eruption, wisdom teeth upper, lower, left, right a total of four, but there are great individual differences, so for adults, there will be 28-32 teeth in the general mouth, which is a normal phenomenon.
For individual people, there may be congenital missing teeth or extra teeth.
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The average adult has 28 to 32 teeth. Because wisdom teeth generally erupt after the age of 18, there are four third molars, and some people do not have wisdom teeth, so there will be a difference. When one or two teeth are lost, it will not affect the human body and chewing function, unless less than 20 teeth are lost, and it will begin to affect the function of multiple systems in the body.
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20 baby teeth.
5 pieces from top to bottom, left and right.
28 permanent teeth 32.
8 pieces each on the top, bottom, left and right.
The eighth of them is a wisdom tooth.
There are individual differences in the size of the gums.
If the position of the wisdom teeth is normal, the position is normal after eruption, and the front adjacent teeth are neatly arranged, and the wisdom teeth can be retained, and there are also non-eruptions, if the position is not correct after eruption, it will damage the adjacent ones, it is recommended to extract them as soon as possible!
I am a dentist, you can continue to ask me if you have any questions.
I hope to help you, and I hope you can adopt it, thank you.
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Normal people have 20 baby teeth and 28-32 permanent teeth, and those that are abnormal cannot be said ......
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Normal 28 32, the back 4 are wisdom teeth, not necessarily long!
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28-32 human teeth are normal.
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People are genetically different from person to person.
The number of teeth will also be different (my dear dad.
45 and a tooth has grown)
So it doesn't matter how many or too few teeth you have.
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Snails have thousands of teeth. Platypus, on the other hand, does not. Humans are somewhere between these two animals – closer to the end of the platypus.
But how many teeth do we really have? There's a good chance you can do this question yourself just by counting your teethers. As reported by Live Science, an adult usually has 32 teeth if they don't have their wisdom teeth removed, and 28 if they have their wisdom teeth removed.
Our pearl whites are divided into categories based on location, shape, and function. In the front and in the middle are the eight front teeth – four on top and four on the bottom – to help us bite and speak. Next to each outermost front tooth are fangs or canines, which are topped with four particularly sharp teeth, perfect for tearing through harder foods.
Then there are the eight premolars, also known as bicuspids, that help your eight molars do all the chewing. Four wisdom teeth, sometimes called "third molars," are located at the back of the face.
That 32-tooth lineup doesn't match the baby version perfectly. We are born with only 20 baby teeth: eight front teeth, four canines, and eight molars.
If you remember your own run-in with the tooth fairy – or you recently witnessed a child losing teeth – you may remember that front teeth usually fall out first, usually between the ages of 6 and 8. Molars usually fall out before we reach our teens.
That said, everyone's tooth trajectory is a little different, and not every adult has 28 or 32 teeth. As Colgate explains, some teeth fall prey to tooth decay, reflux-related erosions, or other conditions. Dental hypoplasia is a rare genetic condition in which some teeth are completely missing.
Others have extra clumps of teeth that burn teeth, called supernumerary teeth.
But no matter how many teeth you have in your mouth, you should be diligent in brushing your teeth (the right way). If you don't, here's what will happen.
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Humans currently have 32 teeth, including 4 wisdom teeth that have degenerated.
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Since humans belong to the primate class, the layout of human teeth and the tooth pattern are the same as those of other primates, i.e., 2,1,2,3 2,1,2,3. There are a total of 32 teeth.
In addition, the upper and lower jaws in humans are reduced, so that many people's wisdom teeth, the last postmolar, do not erupt. Many people have only 28 teeth in their lifetime.
A person has two sets of teeth, primary teeth (20 in total) and permanent teeth (28 to 32) in life. Baby teeth begin to erupt 4 to 10 months after birth, and those who do not erupt after 12 months are delayed in eruption. The eruption order of baby teeth is generally as follows: the lower jaw precedes the upper jaw, from front to back, and the baby teeth emerge at about the age of the year.
The eruption time of baby teeth varies greatly among individuals, which is related to genetic, endocrine, and food traits.
eruption of the first permanent tooth around the age of 6 (first permanent molar, after the second deciduous molar, also known as 6th instar tooth); 6 At the age of 12 years, the primary teeth are replaced by the same permanent teeth one by one, in which the premolar replaces the primary molar, which is the mixed dentition stage; eruption of second permanent molars at the age of 12; The third permanent molars (wisdom teeth) erupt after the age of 18, and there are also lifelong third permanent molars that do not erupt.
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