人的牙齿为什么会得龋病呢?现在一致公认是由四种因素综合作用而成:即糖、致龋微生物、牙齿和唾液的抗龋力下降和时间。 口腔学界几十年研究证明,吃糖过多的确容易产生龋病。在微需氧环境下,口腔内的有些细菌可利用糖产生酸和多糖,酸可以直接破坏牙齿,多糖则有促进细菌粘附到牙面上和互相集聚的作用。经过30多年的努力,人们已经发现变链球菌是一种致龋力量大的细菌。 龋病发生还需要第三个条件,那就是牙齿或唾液 Why do human teeth get caries? It is now unanimously recognized that the combination of four factors: sugar, cariogenic microorganisms, dental caries and saliva anti-caries decline and time. Dental scholar decades of research shows that eating too much sugar is indeed easy to produce dental caries. In a micro-aerobic environment, some bacteria in the oral cavity can utilize sugar to produce acids and polysaccharides, acids can directly destroy the teeth, and polysaccharides can promote bacteria to adhere to the tooth surface and agglomerate each other. After more than 30 years of hard work, it has been found that Streptococcus mutans is a bacteria that causes large cariogenic strains. Caries also need a third condition, that is, teeth or saliva