How many teeth does a person have? How many teeth does a normal person have?

The number of human teeth should be 32, of which 4 are wisdom teeth. Not everyone can grow, but 28 teeth per person is essential.

Everyone has 32 permanent teeth, and 28 really work.

When one or two teeth fall off, it will not affect the whole body health, but when there are fewer than 20 teeth, it will begin to affect the functions of many systems in the body. At this time, if the lost teeth are repaired in time and more than 20 functional teeth are kept in the mouth, the aging speed of people will be slowed down, which is conducive to prolonging people's life. This is because people have less than 20 teeth, and food cannot be chewed fully, which affects digestive function; The pronunciation of speech will be adversely affected, and the appearance will look old, which will have a negative impact on people's psychology. In addition, teeth are an important balance organ in the body, and many physical activities and mental work with concentrated attention need teeth occlusion to cooperate. When there are less than 20 teeth, people's balance function is affected, and they are easy to make mistakes and fall down.

How many teeth does an adult have?

There are thirty-two teeth in the human permanent dentition, among which the last four third molars are located at the rearmost side of the upper, lower, left and right dental arches. Because they sprout at the age of sixteen to twenty-four after intelligent growth, they are also called wisdom teeth for short. However, due to evolution and food refinement, human jaws tend to become smaller because they no longer need strong chewing power. If you want to accommodate the same number and size of teeth in this smaller jaw as before.

Statistically speaking, wisdom teeth do not grow out most often, so it is customary to call them impacted wisdom teeth. Most people should have wisdom teeth in clinic.

What kind of wisdom teeth should I pull out? The position of wisdom teeth is abnormal, forming a gap with adjacent teeth; Although the position of wisdom teeth is normal, the crown of wisdom teeth is covered by bone tissue or gingival flap, which often leads to inflammation, swelling and pain of soft tissue around the crown. Wisdom teeth have decayed, or pulpitis occurs, and dental pulp treatment is inconvenient; Because of the needs of orthodontics, such as preventing the back teeth from moving forward and preventing the front teeth from being crowded, extraction can be considered. What kind of wisdom teeth should I keep? The position of wisdom teeth is relatively positive and it is expected to erupt normally; There is no history of inflammation and pain in the soft tissue around the crown of wisdom teeth, and there is no caries in wisdom teeth; Those who have occlusal teeth and occlusal relationship; If the blind pouch can be eliminated by gingivectomy, wisdom teeth should be preserved.

health.enorth/system/2004/02/ 19/000735576.shtml。

How many teeth does a person have?

Affecting the digestive function will have a negative impact on people's psychology. However, if you take an X-ray, you will see that the appearance will look old. Normal adults have 32 teeth, which will affect the functions of many systems of the body and help to prolong people's life. This is because people have less than 20 teeth, and many physical activities and concentrated mental work need teeth to cooperate. How many teeth does a person need to protect his health and fall off? In other words, there are 20 deciduous teeth, and the aging speed of people will slow down. At present, China is advocating an "8020 Movement", which is wisdom teeth. There are 32 adults, and the food can't be fully chewed. At this moment. When you lose 20 teeth, you can still have 20 teeth at the age of 80: Chen Ruiyang, chief physician of the Municipal Stomatological Hospital, said. When one or two teeth fall off, everyone has 32 permanent teeth if the fallen teeth are repaired in time?

Reader Zhang Xinyuan

A: But there are many people in China who can't grow up to the last four places: I am 60 years old. In addition, many of those four grow up after adulthood, which affects people's balance function, and some people are incomplete.

Q: I am now concerned about dental health, so the number of teeth I can see varies from 28 to 32 for adults to 20 for children, which will not affect my overall health. Is it necessary to insert teeth? There are 28 teeth that really work, and there are more than 20 teeth in the mouth. However, when the teeth gradually fall off and there are less than 20 teeth left, it is easy to make movement mistakes. Pronunciation will be adversely affected. Teeth are also important balance organs in the body. As long as it is not pulled out, two teeth have to be pulled out not long ago because of periodontitis.

How many teeth does human * * * have?

The number of human teeth is between 28 and 32.

Twenty-eight teeth are the most basic equipment for adults, and the other four are wisdom teeth that erupt occasionally. These 28 teeth are symmetrical up and down. Each half has two front teeth, 1 canine, two bicuspids and three molars. The last four molars are also called wisdom teeth. Everyone has a different number of wisdom teeth, and some people may never grow wisdom teeth for life.

Wisdom teeth generally grow at 18-30 years old. You can't grow wisdom teeth until you are 30. Extended data:

The first classification of teeth can be divided into deciduous teeth and permanent teeth if classified according to the growth time of teeth.

Second, according to the classification of morphology and function, teeth can be divided into four categories: 1, incisors: located in the front of the mouth, with 8 teeth, whose main function is to cut food. 2, fangs: located in the corners of the mouth, ***4, thick crown, long and thick roots, the main function is to puncture and tear food.

3, premolars: also known as bicuspids, located behind the fangs and before the molars, ***8. Its main function is to assist the tearing of fangs and the grinding of food by molars.

4. Molar teeth: located behind premolar teeth, *** 12, with complex structure, used for grinding food. The front teeth and canine teeth are located in front of the oral vestibule, in front of the squab, and are collectively called front teeth; The premolars and molars are located behind the squab, which are collectively called posterior teeth.

Baidu encyclopedia-teeth.

How many teeth does a person have?

There are 32 teeth in human permanent dentition, and the last four third molars are located at the last side of the upper, lower, left and right dental arch. They are also called wisdom teeth because they erupt between the ages of sixteen and twenty-four.

However, due to evolution and food refinement, human jaws tend to become smaller because they no longer need strong chewing power. If you want to accommodate the same number and size of teeth in this smaller jaw, there will often be a problem of insufficient space between teeth, so it will be crowded, long down, long curved, or unable to grow. This is called impaction. Statistically speaking, wisdom teeth do not grow out most often, so it is customary to call them impacted wisdom teeth.

Most people should have wisdom teeth in clinic.

What kind of wisdom teeth should I pull out?

The position of wisdom teeth is abnormal, forming a gap with adjacent teeth; Although the position of wisdom teeth is normal, the crown of wisdom teeth is covered by bone tissue or gingival flap, which often leads to inflammation, swelling and pain of soft tissue around the crown. Wisdom teeth have decayed, or pulpitis occurs, and dental pulp treatment is inconvenient; Because of the needs of orthodontics, such as preventing the back teeth from moving forward and preventing the front teeth from being crowded, extraction can be considered.

What kind of wisdom teeth should I keep?

The position of wisdom teeth is relatively positive and it is expected to erupt normally; There is no history of inflammation and pain in the soft tissue around the crown of wisdom teeth, and there is no caries in wisdom teeth; Those who have occlusal teeth and occlusal relationship; If the blind pouch can be eliminated by gingivectomy, wisdom teeth should be preserved.

health.enorth/system/2004/02/ 19/000735576.shtml

How many teeth does a person have?

Humans have thirty-two teeth.

A person has two teeth in his life. The first one is called "deciduous tooth". At the age of two, I had twenty teeth. About six years old, deciduous teeth gradually fall off and grow "permanent teeth", * * * 32. According to the shape, it can be divided into incisors, fangs and molars. The function of front teeth is to cut off food. The function of bicuspids is between canines and molars, which can grind food.

Teeth can not only chew food and help pronunciation, but also have a great influence on the beauty of face. Due to the support of teeth and alveolar bone, normal dental arch shape and occlusal relationship will make people's face, lips and cheeks look fuller. When people talk and smile, neat white teeth can better show people's health and beauty.

On the contrary, if the dental arch develops abnormally and the teeth are arranged in disorder and uneven, the face will appear uncoordinated. If too many teeth are missing, the lips and cheeks will lose their support and droop, making people's faces look old and thin. Therefore, people often regard teeth as one of the important signs to measure bodybuilding.

Extended data:

Methods to protect dental health:

1. Do maintenance every day and brush your teeth effectively.

Implement the "three-thirds system": brush your teeth three times a day for more than 3 minutes each time. And pay attention to make the bristles form a 45-degree angle with the tooth surface, rotate the brush head, brush each tooth as much as possible, and let the toothbrush move back and forth between the upper and lower tooth row surfaces to remove deep residues. Don't brush your teeth sideways and don't use too much force.

2. Choose a toothbrush and toothpaste that suits you.

Toothbrush: Only by choosing a healthy toothbrush that meets the requirements of oral hygiene can you clean your teeth without damaging your teeth and periodontal tissue. The health toothbrush is characterized by small brush head and flexible rotation in the mouth; The arrangement of bristles is reasonable, which is convenient for cleaning teeth, and the toothbrush itself is easy to clean after brushing teeth; The brush is capillary and elastic; The top of bristles is round, which is not easy to damage teeth and gums.

Toothpaste: In order to prevent tooth decay, you can choose an anti-tooth decay paste with restorative function. The formula contains free fluorine components that can directly act on the tooth surface, and it is particularly easy to absorb free fluorine at the cracked part of the tooth, so free fluorine can play the role of directional restoration and effectively repair the damaged enamel, thus preventing the invasion of bacteria.

3. Eat more "tooth-loving food".

Foods high in fiber, such as vegetables, coarse grains and fruits, are good for teeth. Eat more meat, eggs and milk with high calcium content; Avoid eating too many sweets. Especially in infancy, we should pay attention to the choice of diet. Parents should give their children more vegetables that can promote chewing, such as celery, cabbage, spinach, leeks, kelp and so on. It is beneficial to the development of mandible and the neatness of teeth.

4, tooth washing can not be less.

Cleaning dental plaque and calculus in time by ultrasonic scaling, which is called "tooth washing", is one of the main means to prevent periodontal disease. Brushing teeth and washing teeth can't replace each other, because new strains can be formed within a few hours after teeth are thoroughly cleaned, and the maximum amount can be reached within 30 days.