How many teeth does a normal person have? A normal person should have several teeth

The layout of the human teeth and the tooth type are the same as those of other primates. There are a total of 32 teeth.

The hardest organ of the human body, in addition to the functions of cutting, biting, chewing, etc., also plays a role in maintaining the shape of the face and assisting pronunciation. There are four types of teeth: incisors (incisors), canines (canines), bicuspids (premolars), and molars (molars).

Each tooth consists of a crown that is exposed outside the alveolar bone, a root that grows inside the alveolar bone, and a neck between the crown and the root. The main material of the tooth is dentin (dentin), which is surrounded by enamel (in the crown part) and cementum (in the root part). In addition to the cementum, there is a periodontal ligament made up of fibers that holds the tooth in place in the socket.

Generally speaking, there are 20 baby teeth and 28 permanent teeth, and some people will have a third permanent molar at the end of each of the upper and lower dentitions on both sides in adulthood, which is what we usually call "wisdom teeth". There are also some people who do not have all four wisdom teeth or can erupt, and sometimes one or two (usually symmetrical) are born with a missing arrow, or are blocked by adjacent teeth, bones and soft tissues and cannot erupt from the spine, so it is normal for adults to have 28 to 32 in the mouth.

It is normal for an adult's teeth to be in the range of 28 to 32 years of Songkai.

Under normal circumstances, there are about 20 teeth in the oral cavity during the deciduous period, including four deciduous incisors, four deciduous lateral incisors, four deciduous canines and eight deciduous molars.

By the time the age of six is replaced, the number of teeth in the mouth reaches 28 to 32, including four central incisors, four lateral incisors, four canines, eight bicuspids, and eight to twelve molars. These teeth, which are similar in name to baby teeth, are also in a similar position to their original distribution, symmetrically and evenly distributed on both sides of the upper and lower jaws.

Compared with baby teeth, permanent teeth have eight more bicuspids and four molars. Each of these four molars has a different number of teeth, which is why some people only have 28 teeth and others have 32 teeth.

Extra teeth usually occur in the central incisor area, and some are buried in the jawbone. Missing frontal teeth are mostly common in maxillary lateral incisors and mandibular second premolars, which generally occur symmetrically, and generally speaking, if your left side does not erupt, there is a high probability that the right wild skin will not have it.

A normal person's teeth will have 28-32 teeth.

There are two sets of teeth in a person's life, the first set of teeth is classified as deciduous dentition, which begins to erupt from about 6 months of birth, and completes the eruption of deciduous teeth around the age of 2. There are 5 frees on the upper, lower, left and right sides, and there are 20 primary incisors, primary lateral incisors, primary canines, first primary molars, and second primary molars. From the age of 6-7 to 12-13 years, baby teeth gradually fall out and are replaced by permanent teeth, which are the second set of dentition after the loss of baby teeth.

Precautions for protecting your teeth.

Chewing exercise: So the chewing exercise is a full exercise of the masticatory muscles. We need to eat harder and rougher often, and it is best to choose high-fiber foods, so that we can effectively achieve the effect of exercising the masticatory muscles, and can also make the tissues around the teeth get a comprehensive protective effect.

Gum massage: It can promote blood circulation in the periodontal tissues, promote the metabolism of the supporting tissues of the teeth, and correspondingly improve the disease resistance of the teeth. Gum massage can be performed in or out of the mouth, so in the process of protecting the teeth, you should also brush your teeth frequently, and every corner must be carefully brushed when brushing, so as to bring better results.