What is the cause of dental caries?

What are the causes of dental caries? I believe this is a problem that many people are concerned about. Because most people are now bothered by this problem. Dental caries does not only affect our diet, but if it is serious, it affects all of our health. In order to avoid this situation, we need to know something about the cause of dental caries.
And the development of dental caries in 1. bacteria, because bacteria plays a leading role in the etiology of dental caries and dental caries is recognized internationally in recent years many kinds of bacteria bacterial disease caused by caries, the most important is some mutans streptococci and lactobacilli. These bacteria are mixed with mucin and food debris in saliva and firmly adhere to the surface of the tooth and the pit. This adhesive is called plaque or plaque (dental, plaque). A large number of bacteria producing acid in plaque, resulting in decalcification and dissolution of the enamel surface below plaque. Clinical investigation showed that children with more plaque in the oral cavity also had more caries.
2. diet in the formation of dental caries, diet is an important role in bacteria. Contains large amounts of carbohydrates and sugars in food, bacterial life and activity energy of these substances can supply the plaque, and the bacterial metabolism of the glycolysis to produce organic acid, acid lingering on the teeth surface and fissure, the enamel demineralization after damage, some bacteria and dissolved protein formation of cavity. There are many kinds of cariogenic sugar, and the most important one is sucrose.
3. the morphology, structure and location of tooth and tooth have obvious relation with caries. The defects in the development of the tooth bite surface are the retention of cells and food debris in the deep fossa, and it is difficult to remove and cause caries. Lack of mineralization, especially in the teeth with insufficient calcification, the density of the enamel and dentin is not high, the resistance to caries is low, and it is prone to caries. The content of fluoride in the teeth of the mineralized structure although very few, but it is very important to enhance the anti caries of teeth. Dental fluorosis is difficult to occur when there is adequate fluoride in the teeth. The structure and calcification degree of deciduous teeth and young permanent teeth are not mature enough, so they are susceptible to caries and have high caries rate.

Saliva is the external environment of the teeth, a buffer, washing, anti castor or bacteriostatic effect. A large amount of dilute saliva can wash the teeth and reduce the accumulation of bacteria and food debris.
The above is about the cause of caries related presentations, and now we should understand the causes of caries, we can be based on these causes to prevent. However, if there is caries, we must timely treatment, so as to avoid it seriously affect our health.