Everyone has teeth, but why do some people have wisdom teeth and others don t?

Everyone has wisdom teeth, but some people's wisdom teeth are not exposed and are still wrapped in gums, and some people's wisdom teeth are square and generally not felt.

Some people do not have wisdom teeth because the bones of the body have degenerated in the process of human evolution, which leads to the loss of congenital wisdom teeth and the tooth germ of wisdom teeth no longer develops.

This is because everyone's genes are different, in fact, it is also related to their living habits and what they eat.

Why do some people have "wisdom teeth", while others don't have one in their lifetime? After reading it, you will understand.

Wisdom teeth, also known as third molars, usually begin to grow during adolescence or early adulthood. However, not everyone develops wisdom teeth, which is mainly related to genetic factors and evolution.

Genetic factors: The growth of wisdom teeth is influenced by genetic factors. If neither parent has wisdom teeth, then their child will most likely not have wisdom teeth either. In addition, certain ethnicities and families may have the genetic trait of not having wisdom teeth.

Evolution: From an evolutionary perspective, wisdom teeth may be an adaptive structure that human ancestors evolved to adapt to coarse foods. However, with the change of human eating habits, the need for wisdom teeth in modern people is gradually decreasing.

As a result, wisdom teeth have gradually become a kind of "degenerative organ", and their expression in human segment genes has gradually weakened. As a result, more and more people are no longer having wisdom teeth.

It should be noted that even if wisdom teeth are grown, problems such as impacted wisdom teeth and wisdom dentitis may occur. This is because with the gradual shrinkage of the human jaw, the space for wisdom teeth to grow becomes limited, which can easily lead to abnormal growth of wisdom teeth. Therefore, it is important for people with wisdom teeth to have regular dental check-ups and maintain good oral hygiene.

If wisdom teeth cause serious problems, tooth extraction surgery may be necessary.

Hi there, that's an interesting question. In fact, why some people have wisdom teeth and some people don't have wisdom teeth has not been completely resolved. However, current research suggests that it may be related to a variety of factors such as individual genetics, lifestyle habits, and environmental factors.

For example, some scientists believe that the jaws of the current Suixiao generation have shrunk, causing wisdom teeth to not grow properly; Other scientists believe that the spread of food softening and handling techniques also affects the growth of wisdom teeth. However, in daily life, we can maintain oral health by maintaining good oral hygiene, properly controlling the intake of sweets, and visiting the dentist regularly

Does everyone have wisdom teeth?

No. Wisdom teeth vary greatly from person to person, some appear at a young age, others develop wisdom teeth in middle age, and some people do not grow for life, which is normal. The so-called wisdom tooth is a tooth that grows out from the innermost part of the alveolar bone, up, down, left and right, that is, the third molar.

This tooth does not grow until adulthood, so it is seen as a symbol of wisdom, so it is called "wisdom tooth".

Do wisdom teeth have to be removed?

Whether wisdom teeth should be removed or not depends on the situation. For normal people, wisdom teeth are dispensable. If wisdom teeth erupt naturally like other teeth, do not interfere with eating, and do not cause any pain, as if they do not exist, then wisdom teeth can not be extracted.

Because it came, it didn't cause us any trouble. On the contrary, if the wisdom tooth hurts twice in three days, and there is inflammation, which has seriously affected normal life, work and study, then it is necessary to consider removing it.

This species condition must be unplugged:

1. Tooth decay: If wisdom teeth are decayed, in addition to the very simple cavities that are not deep in the occlusal surface can be filled, those adjacent surface cavities require good technology, and those with deep cavities and even root canals, we recommend extracting them to prevent future problems.

2. Invasion of adjacent teeth: Usually the patient is not aware of it, but is known by the dentist with X-ray diagnosis. Usually, there is not enough space for wisdom teeth to erupt, and they will fall on the second molar, which makes it difficult to clean the second molar, and even partially resorbs the tooth, causing discomfort or toothache for the patient.

3. Lack of space: Wisdom teeth are in a state of extinction in the history of human evolution. As a result, dental arches are getting smaller and smaller, and it is common to run out of space.

Swelling and pain are most felt during germination. Many people decide to have their wisdom teeth removed because they can't tolerate the pain.

4. It is not easy to clean: due to the lack of space, wisdom teeth often grow crooked, which often causes difficulties in cleaning teeth, so tooth decay occurs.

5. There is no right teeth: As mentioned earlier, not everyone will have the same wisdom teeth. Therefore, if there is no competing wisdom tooth to bite on the opposite side of the wisdom tooth, over-eruption of the wisdom tooth may occur, which will affect the occlusion.

6. Impacted teeth: Usually this is the most annoying one, and the dentist will find it difficult to get it, but the patient may not feel it, so he ignores it. This type of tooth is usually buried in the alveolar bone and needs to be extracted if it is painful or if there is a diagnosis of a lesion.

What kind of wisdom teeth are worth keeping?

1. The position is relatively positive and is expected to germinate normally.

2. There is no history of inflammation and pain in the soft tissues around the crown of wisdom teeth, and there is no caries in wisdom teeth.

3. Have a pair of wisdom teeth for clenching teeth.

In medicine, wisdom teeth are also called third molars, the eighth tooth counted from front to back, wisdom teeth are the last permanent teeth to erupt among the 32 permanent teeth of human beings, located at the back of the upper and lower left and right arches. Because most of the wisdom teeth will be around the age of 16 to 24 when they erupt, after the growth of people's wisdom, they are also called wisdom teeth, referred to as wisdom teeth.

In the process of human evolution, due to the finer and finer food, the burden on the jaw bone is reduced accordingly, resulting in the continuous reduction of the bone mass of the jaw, but the volume of the tooth does not decrease, and finally the position of the tooth eruption is insufficient, and the final eruption of the third molar is most likely to form wisdom tooth pericoronitis, which is the main reason for the abnormal position of wisdom tooth eruption.

Origin of wisdom teethWisdom teeth refer to the four third molars in the human mouth, one at the innermost part of the alveolar bone, one on the left and one on the left. Because these four third molars begin to erupt at the age of 20, when people's physical and psychological development is close to maturity, they are regarded as a symbol of "wisdom arrival", so they are called "wisdom teeth" - wisdom teeth.

In fact, from the point of view of modern medicine, wisdom teeth are inevitable for human evolution. As we all know, "use in and waste out" is a universal law in the theory of biological evolution. Wisdom teeth are a prime example of this.

Do wisdom teeth have to be removed, and which wisdom teeth can be retained?Wisdom tooth extraction is particular, that is, the extraction and retention of wisdom teeth should be determined according to the degree of wisdom tooth impaction, orientation (mesial, distal, buccal, lingual, etc.), whether there is chewing function, and whether it is often complicated by inflammation. According to the investigation and study of 2,560 patients with impacted wisdom teeth and their complications by the Department of Stomatology of Nanjing General Hospital of Nanjing Military Region, it is believed that wisdom teeth with the following comorbidities should be extracted:

1. Buccal impacted wisdom teeth that do not have chewing function and often bite the buccal mucosa may become a lesion tooth that leads to buccal mucosal ulceration, infection, erosion, and even precancerous lesions, and should be extracted as soon as possible.

2. Low vertical impacted wisdom teeth that are often complicated by acute and chronic pericoronitis have become diseased teeth that affect the health of the body and should be extracted.

3. Impacted wisdom teeth with mesial oblique impaction, although there are no symptoms for the time being, the presence of the wisdom teeth can cause caries in the neck of the distal proximal surface teeth of the second molar. In order to protect the second molars with important masticatory functions, early removal of these impacted wisdom teeth is advocated.

Other wisdom teeth with normal tooth position and chewing function, or wisdom teeth with no complications such as discomfort, inflammation, or caries despite impaction, or wisdom teeth that can be used as abutments during denture (denture) restoration.

Wisdom teeth are very difficult to extract, and some of the diseased particles that are completely horizontally ambushed and impacted need to be cut and deboned to be removed, because the intraoperative damage is large, and the postoperative reaction may also be more violent, which may lead to postoperative swelling of the face. Therefore, anti-inflammatory drugs and painkillers should be routinely prepared after surgery.

Be sure to go to a regular hospital.

Human beings have evolved. The jaws are smaller than those of ancient people. Moreover, in ancient times, the sanitary conditions were not very good, and teeth were easy to fall out, and wisdom teeth erupted just to make up for it. Now we're evolving to not have wisdom teeth. -#

The wisdom tooth in my upper right corner has also been growing for a long time, and it has grown so big and sharp that it hurts to bite into the flesh. I didn't care about it, and then I didn't know if it was bitten too much and the meat couldn't grow back, so it was fine. But the one in the lower left corner has only been half long for more than a year, and it often hurts and grows crooked, so I went to pull it out last month.

The doctor told me that wisdom teeth that hurt once or twice a year do not need to be extracted.

I suggest you unplug it. Originally, the doctor also said that it would hurt after the anesthetic, and he himself had a week of pain when he had his wisdom teeth removed. But I didn't hurt at all, really, I don't know if it's the doctor's skills or my rp, o( o haha

Individual differences, whether it is long or not are normal.

In terms of wisdom tooth growth, it will vary due to individual differences, some people will erupt before the age of 20, some people will not grow wisdom teeth until they are in their forties or fifties, and some people will not grow wisdom teeth for a lifetime, which is normal.

However, it should be noted that under normal circumstances, wisdom teeth erupt before the age of 25, and what we mean by normal in medicine means: more than 50% are statistically normal, less than 10% are abnormal, and less than 1% are malformed. Then, if wisdom teeth erupt after the age of 25, it can only be said to be abnormal, but it has no effect on tooth function.

Every wisdom tooth has its temperament, not necessarily all of them are normal eruptions, those wisdom teeth with a bad temper, but how long they want to grow, lie long, obliquely long, grow halfway and not long, people are very troubled.

In addition, wisdom teeth are long back, which is difficult for toothbrushes to reach, and often cannot be cleaned, so it is easy to get tooth decay. In addition, this kind of bad-tempered wisdom teeth can also harass adjacent teeth, which may cause tooth plugging and other problems, and frequent impaction of food will also be prone to tooth decay.

Wisdom teeth do not grow in everyone, they generally begin to erupt after the age of 16, some people do not grow until they are in their forties or fifties, and some people do not grow for life.

Wisdom teeth generally grow better, like normal teeth, there is no reaction, but some impacted teeth will affect the health of adjacent teeth, and it is difficult to erupt, such wisdom teeth need to be removed as soon as possible.

If there are wisdom teeth, and the growth of wisdom teeth is abnormal, it may lead to food residues and frequent anti-inflammation, then it is recommended to remove them.

Wisdom teeth, the third largest molars in scientific name, are commonly known as wisdom teeth, standing teeth, and terminal teeth, and are the teeth closest to the throat in the mouth.

If there are 4 in total, two in the upper and lower jaws, they usually grow at the age of 16 or later, compared to the baby teeth that erupt in early childhood and the permanent teeth that are replaced in childhood, wisdom teeth usually erupt when the human mind is already mature, hence the name.

Wisdom teeth are not for everyone, people who do not have wisdom teeth are also normal, people with wisdom teeth can generally grow 1 to 4, but they are all normal, under normal circumstances, wisdom teeth will grow the first one in our 3o years old, all wisdom teeth are basically not good, and will not grow out normally like other teeth, during the period of not growing and erupting, the gum part will be very painful for a long time, even if it grows out, it will not be aligned with the molars, or horizontally, crookedly long, and may even be ejected from the middle of the gums, It grows in the direction of the mouth, or it grows in the direction of the cheeks, and it hurts and suffers.

Therefore, when wisdom teeth erupt, it is necessary to see a doctor in an emergency, and ask a doctor to remove them in an emergency, otherwise if they are long, the good molars will be loosened and broken.

May everyone have a mouthful of white and straight teeth.

Wishing you all a great day!

There are no reasons for the absence of wisdom teeth: 1. Congenital deficiency, due to the evolution of human beings, it is easy to disappear after long-term consumption.

After the length of the jaw decreases, wisdom teeth will also degenerate, and over time, some wisdom teeth will be congenitally missing. 2. Ambushed under the gums, wisdom teeth have erupted, but they are covered by the gums on the surface, and they cannot be seen in the mouth, but the actual teeth have also erupted. 3. The wisdom teeth are completely buried in the jawbone, and even if the surface gums are removed, the wisdom can not be seen, and the wisdom teeth can only be seen in the jaw bone when the curved tomography is taken in the stomatology department of a regular hospital.

Wisdom teeth, the third largest molar, commonly known as wisdom teeth, standing teeth, are the teeth closest to the throat in the mouth, if all grow out a total of 4, two in the upper and lower jaws, generally grow out at the age of 16 or later, compared to the baby teeth that erupt in early childhood and the permanent teeth replaced in childhood, wisdom teeth usually grow when the human mind has matured, hence the name.

In terms of wisdom tooth growth, there are great individual differences, some people before the age of 20, some people only grow older, and some people do not grow for life, which is normal. In addition, not all four wisdom teeth will necessarily grow completely, some people's wisdom teeth may only grow 1 or 2, and some wisdom teeth may not grow even halfway through, which is called wisdom tooth impaction.

Starting between the front teeth, count the number of teeth from one front tooth to the inside, and if there is an eighth tooth, it is a wisdom tooth.

Wisdom Teeth and Evolution.

There may be two reasons for the deterioration of wisdom teeth: first, the lower jaw size became smaller during the evolution of humans from apes, leaving no jaw space for wisdom teeth; Second, it may be related to oral hygiene, as it was not uncommon for young people in ancient times to have a few or most of their teeth to fall out.

And this is when the wisdom teeth that have just erupted will come into play. Modern dentistry is developed, everyone has the habit of brushing teeth, unless there is an accident, young people's teeth will generally remain intact, wisdom teeth will become redundant. Because there is no room for growth, wisdom teeth tend to be painful when they grow, and the position and orientation will be abnormal after eruption, and most people's wisdom teeth do not have the ability to chew and do not bite the teeth.

That is, wisdom teeth are generally redundant and are considered a trace organ.

Diseases caused by wisdom teeth.

Due to the special location of wisdom tooth growth, it brings many problems to its cleaning and self-absorption, and often causes diseases such as caries, periodontitis, and pulpitis.

Since wisdom teeth are in the innermost part, daily brushing is not easy to clean, and it is easy to produce tooth decay, and wisdom teeth often have swelling pain due to insufficient germination space, and will also invade adjacent teeth, causing toothache.

In addition, due to the lack of bite teeth, sometimes wisdom teeth will overerupt, which will affect the occlusion; Sometimes, insufficient germination will become an impacted tooth, causing malaligned dentition, infection of the pericoronal space, and difficulty in opening the mouth.

Wisdom teeth are the third largest molars and have an important impact on adjacent second molars.

Since most wisdom teeth are impacted anteriorly, they are pressed against the second molars at an angle of about 45 degrees, thus forming a crown angle, which is easy to impede food, which can lead to caries of the second molars over time, and even pulpitis, even if it is not so severe, it will affect the life of the second molars.

Wisdom tooth removal.

Due to the diseases that can be caused by the above-mentioned wisdom teeth, most professionals recommend wisdom tooth extraction in order to avoid future problems.

There are also some people whose wisdom teeth do not cause any distress to people, which is determined by the physiological structure of the individual, and there is no need for these people to have their wisdom teeth removed. Because the location of wisdom teeth growth is a branch of the trigeminal nerve, if not treated properly, it can affect sensation and even vision in the mouth.

In adults, the mandibles and wisdom tooth roots have already been shaped, so there are certain risks associated with wisdom tooth extraction.