What is the cause of dental caries?

Many patients are suffering from caries, dental caries is very common, although the caries will not give patients much harm, but in the onset of dental caries or pain, but why people suffering from dental caries? In addition to oral bacteria and other reasons What other reasons to induce dental caries? Here on this issue to explore the causes of dental caries are what.
1, bacteria: bacteria is a necessary condition for the occurrence of caries, is generally believed that there are two types of caries, one is the acid bacteria, mainly Streptococcus mutans, actinomycetes and Lactobacillus, can carbohydrates Decomposition of acid, resulting in tooth mineralization. Bacteria are mainly attached to the tooth surface with plaque.
2, oral environment: (1) food is mainly carbohydrates, both with the formation of plaque matrix, but also plaque bacteria in the main energy, bacteria can use carbohydrates (especially sucrose) metabolism of acid, and synthetic extracellular Polysaccharides and intracellular polysaccharides, produced by the organic acid is conducive to acid and acid bacteria growth, but also conducive to the hard tissue of the demineralization.

(2) saliva in the normal circumstances, the saliva has the following effects: mechanical cleaning to reduce the accumulation of bacteria. Antibacterial effect of direct inhibition or inhibition of plaque attached to the tooth surface. Antacid effect by the heavy bicarbonate and other substances from the role of neutralization. Anti-dissolving effect through the calcium, phosphorus, fluoride and other teeth to enhance acid resistance, reduce the solubility.
3, the host: the tooth is the target organ in the process of caries, the shape of the teeth, mineralization and organizational structure and caries have a direct relationship, such as the teeth of the pit and poor mineralization of the teeth more susceptible to caries, and Mineralization is better, the organization of fluorine content of the appropriate tooth caries strong; the other hand, the structure of the teeth and the body are closely related.
Through the above description can be seen to induce dental caries is also a lot of reasons, dental caries once the pain is still very uncomfortable, so we should be in the daily should keep oral hygiene and clean, regular oral care, so as not to cause some oral diseases.