What are the factors causing caries?

At present, the incidence of dental caries is getting higher and higher, and the incidence is becoming more and more widespread. I believe that many people have experienced dental caries. So, do you know what factors lead to the onset of caries? In our daily life we all think of the tooth decay caused by too much sugar. In fact, there are four factors that cause caries, and they are indispensable.
1. bacteria
Bacteria are mainly by plaque adhesion to tooth retention oral carbohydrates were degraded to a high viscous dextran polymerization to form plaque matrix composition; on the other hand the acid producing tooth demineralization plaque is more complex in addition to a large number of bacteria and sugar protease substance.
2. oral environment
The oral cavity is the external environment of the teeth, which is closely related to the occurrence of caries. The main functions are the food and saliva
(1) the main food is the main energy in the formation of bacterial plaque bacteria is related with plaque matrix carbohydrate can use carbohydrates (sucrose) metabolism of organic acid and acid synthesis of extracellular polysaccharide and intracellular polysaccharide production.
(2) the amount of saliva and qualitative changes can affect the caries rate of clinically visible xerostomia or salivary secretion in patients with caries rate increased significantly in treatment of patients with maxillofacial radiology because salivary gland was destroyed and there are a number of dental caries; on the other hand, when the lactic acid in saliva increased or bicarbonate the content is also conducive to reduce caries.
3. host
Is the tooth form and organizational structure and the degree of mineralization of dental caries in target organs in the process of dental caries is directly related to occurrence of such teeth fissure and bad teeth mineralization are more susceptible to caries and better tissue containing fluorine degree of mineralization in the appropriate amount of dental caries resistance is strong; on the other hand the body structure and the teeth are closely related especially is the development and structure in development not only affects the teeth and flow velocity and composition of saliva also has a big impact because it is an important link in the occurrence of dental caries.

4. time
The incidence of dental caries is a long process from the beginning to the formation of the general clinical caries 1.5-2 years so that even if the cariogenic bacteria suitable environment and susceptible to caries exist at the same time will not immediately occur only these three factors also exist for a long time can cause caries so the time factor in the caries is important caries.
In this paper, we introduced what are the factors causing dental caries, dental caries caused by four factors are indispensable, their interaction leads to tooth decay, bring harm to patients, oral health in life so we must pay attention to oral hygiene, inhibit the breeding of bacteria.