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How many teeth does everyone have? When do teeth stop growing?

Teeth are an important part of human body, but many people often ignore oral and dental health. Lack of teeth, or tooth deformity will have a great impact on people's life. So how many teeth does everyone have? When did teeth stop growing? This article introduces the knowledge about teeth. Let's have a look.

1. How many teeth are there altogether?

Each person has 32 permanent teeth and 28 really functional teeth.

Generally, 28 to 32 are normal, of which 28 are symmetrical up and down, including 2 central incisors, 2 lateral incisors, 2 first premolars, 2 second premolars, 2 first molars and 2 second molars. 28 are added up and down. There are four wisdom teeth, some grow and others don't, no matter how many of them are normal.

Wisdom teeth are the four third molars on the innermost alveolar bone, one on the top, one on the bottom, one on the left and one on the right. There are great individual differences in the growth of wisdom teeth. Some people grow before the age of 20, some at the age of 40 or 50, and some don't grow all their life. This is normal.

When one or two teeth fall off, it will not affect the overall health, but when less than 20 teeth fall off gradually, it begins to affect multiple system functions of the body. If the lost teeth are repaired in time and more than 20 functional teeth are maintained in the mouth, people's aging speed will slow down, which is conducive to prolonging people's life. This is because people have less than 20 teeth and food can not be chewed fully, affecting digestive function; Speech and pronunciation will be adversely affected, and the appearance will look old, which will have a negative impact on people's psychology. In addition, teeth are also an important balance organ in the body. Many physical activities and focused mental work need tooth occlusion. When there are less than 20 teeth, people's balance function is affected, prone to activity errors, falls and other phenomena.

2. When do teeth stop growing?

From five months of birth, people begin to grow teeth. Before the age of seven, they belong to the stage of primary teeth. At this stage, the teeth are growing and the roots are strengthening. By the age of seven, they basically completed the first tooth replacement. In the early stage of tooth replacement, if the calcium element is supplemented reasonably, the teeth will be very strong. However, if there is a lack of calcium during tooth replacement, the teeth will grow weaker. Full teeth will grow completely before the age of 17, and wisdom teeth will appear after the age of 23. Generally, wisdom teeth are the innermost tooth, and basically all teeth stop growing after the age of 17, so after adulthood, We must pay attention to the maintenance of teeth to make them healthy.

For children's tooth growth machine, parents must pay attention to calcium supplementation, because calcium supplementation can promote the growth of teeth. The main component of teeth is calcium. If calcium deficiency, it will lead to the lack of toughness of tooth roots. A large amount of calcium deficiency will also lead to osteoporosis. For adults, the firmness of teeth also depends on this element, If calcium is not replenished in time, adults will have loose teeth or bleeding gums.