Caries is how did it happen?

Experts: in the teeth to a variety of bacteria mainly under the influence of external factors, the tooth enamel, dentin or cementum occurred in a chronic progressive disease of the damage.

Caries is a long history of the disease, China's ancient Assyrian and Bobby Lun and people think that dental caries is due to corrosion caused by insect, which is limited to conditions at the time caused the mistake. Since the 2nd century BC to the modern understanding of caries a lot of theory, theory of chemical bacteria, protein decomposition theory, break down protein - chelation theory, theory of glycogen, four of the factors together. At present, recognized for more than four of the factors together. It noted that the incidence of dental caries and bacteria, food, and time host of the four major factors, namely, the incidence of caries sensitive to the requirements of the host, oral cariogenic flora as well as the appropriate substrate, which substrate and there were adequate.

First of all, the existence of bacteria caries is the major condition. Bacteria in dental plaque is on the surface caries have an important environment. Oral health is good or bad caries occur, good oral hygiene so that the formation of plaque under control in order to control the incidence of caries.

Second, the food. Rough eating a certain food self-cleaning anti-caries, consumption of coarse food more difficult to have a huge plaque and the accumulation of more acid, which is not easy to form suffer from dental caries. The Food and refined sugar in the rough than the content of food, sugar into plaque, the plaque within the cariogenic bacteria so that the fermentation of sugar to form a variety of the acid, the acid in the tooth surface to stay longer, the teeth will dissolve hard tissue damage Arising from caries. In tooth development during the period between the two meals, bed, the sugar is more harmful.

The third is the host. Is the host of caries susceptibility, host of the sensitivity of caries involves a number of factors, such as the saliva flow, flow, composition, structure and shape of teeth, the body of the state of the body. Irregular teeth alignment, crowded, overlapping Department susceptible to dental caries. Saliva have clean teeth, some of the components of saliva on dental caries and periodontal disease can play an inhibitory effect. Other factors, such as genetic, nutritional, minerals, endocrine host of anti-caries a certain force.

The fourth is time. The occurrence and development of caries is a very slow process, carbohydrates stranded in the time required for surface tooth, the tooth eruption of the time required for the formation of plaque from caries to have caused the time required for power, are affected caries An important factor for disease.

Therefore, four factors together on the bacteria, the host, food and time together, boil down to the occurrence of dental caries caused by the foundation and the root cause.