What are the causes of dental caries?

The key factors for the incidence of dental caries is a bacterial infection, and people's saliva itself has the function of protecting teeth, but it refers to the situation in normal saliva, and if it is caused by the amount of saliva, and cause changes, will cause the cause of dental caries, the following specific introduction on the risk factors of dental caries:
First of all, the presence of bacteria is the main condition for caries. Plaque is an important environment where bacteria produce caries on the tooth surface. The quality of oral hygiene is also the condition of caries. Good oral hygiene controls the formation of plaque and controls the occurrence of dental caries.
Two is food. Eating crude food has a certain self-cleaning, anti caries role, eating rough food is not easy to produce a more abundant plaque and accumulation of more acid, so it is difficult to form conditions for caries. While the content of sucrose in food coarse food refining, sugar into the plaque, plaque in cariogenic bacteria to ferment sugar, form a variety of acid, the acid to stay longer in the teeth, the tooth hard tissue dissolution damage caused by dental caries. Eating sweets is more harmful during the period of tooth development, between two meals and before bedtime.

Three is the host. The host refers to the susceptibility to caries, and the susceptibility of the host to caries involves many factors, such as the velocity, flow, composition, morphology and structure of the saliva, and the general condition of the body. Irregular arrangement of teeth, crowded, overlapping places, susceptible to caries. Saliva has the function of cleaning teeth, and certain components of saliva can inhibit tooth decay and periodontal disease. Others, such as heredity, nutrition, minerals and endocrine, have a certain influence on the host's resistance to caries.
Four is time. The occurrence and development of dental caries is a very slow process, carbohydrate retention required for tooth surface of the teeth out of time, time, adorable plaque required from the formation to have the cariogenicity of time required, are important factors that influence the incidence of dental caries.
The cause of dental caries in children, the most important point is the lack of awareness of parents, because the children did not understand, self-control is relatively weak, therefore, in the prevention of dental caries in children, parents need to have sufficient awareness of the prevention, and grasp some key aspects of prevention.