What reason is carious flesh swollen caused

summary

Dental caries is also called caries. Caries is often called "insect tooth" by common people. It is wrong to think that it is caused by "insect". The occurrence of dental caries is related to four factors: bacteria, food, host and time. More than 200 kinds of bacteria live in the oral cavity for a long time, and a variety of bacteria mainly Streptococcus mutans adhere to the tooth surface firmly in the form of plaque. Food participates in plaque formation and provides energy for the growth of bacteria. At the same time, it is digested by bacteria to produce acid, which corrodes the hard tissues of teeth until caries cavity is formed. So, what are the common problems about cavities? Now let's take a look with me.

What reason is carious flesh swollen caused

First, what is the relationship between plaque and caries? The acid produced by bacteria is not easy to be diluted or removed by saliva, and can stay on the tooth surface for a long time to destroy the tooth. Plaque is a necessary factor for the occurrence of dental caries. Without plaque, dental caries will not occur. Eliminating plaque can reduce the occurrence of dental caries. It should be noted that the plaque is not once and for all after removal. The plaque can automatically form again 12 hours after cleaning, which indicates that brushing teeth or other daily oral hygiene work should not be less than 2 times a day.

Second, what is the relationship between sugar and dental caries? Sugar is closely related to the occurrence of dental caries. Sugar participates in plaque formation and helps bacteria to attach to the tooth surface; as a bacterial substrate, the acid produced by sugar fermentation accumulates on the tooth surface, leading to the formation of caries cavity, which is the main mechanism of sugar induced caries. The cariogenic ability of sugar is affected by many factors, such as the type and character of sugar, the amount and frequency of sugar. Sucrose and glucose are more effective than maltose and milk.

Third: why can fluoride toothpaste prevent dental caries? The reason of fluoride preventing dental caries is still controversial, but there are several points for sure: ① if fluoride exists in plaque or saliva, it is beneficial to repair early dental caries; ② fluoride can interfere with bacterial fermentation and enamel acid production; ③ higher concentration of fluoride has bactericidal effect; ④ if appropriate fluoride is ingested during tooth development, it can enhance the acid resistance of enamel. Fluoride toothpaste is one of the important means of local use of fluoride to prevent dental caries, which is safe and effective.

matters needing attention

If the body takes too much fluoride for a long time, it may cause chronic fluorosis and damage teeth, bones and nervous system. Excessive fluoride intake during tooth development will cause enamel hypoplasia. Children often swallow part of toothpaste by mistake. Therefore, children's use of fluoride toothpaste should be under the supervision and guidance of their parents. It is better to choose a special toothpaste with low fluoride content for children. When using, the amount of toothpaste should be less, about 1 / 2 of the ordinary amount, and the size of soybean. Fluoride toothpaste is not recommended for children under 7 years old.