在人类的疾患中,龋病流行最广。每年千百万职工因牙病就医而影响工作,不仅个人遭到折磨,也使国家受到严重损失。龋齿为局部进行性牙齿损坏,系牙面釉质受有机酸腐蚀而脱矿。产生龋齿的因素有三:细菌、饮食和牙齿的易感性。牙面上的特异性致病菌发酵摄入的糖类而产生有机酸,腐蚀牙面。 In human diseases, dental caries are the most prevalent. Every year, tens of millions of workers suffer from dental problems and affect their work. Not only are individuals tortured, they have also caused serious losses to the country. Dental caries for local progressive damage to the teeth, Department of dental enamel by organic acid corrosion and demineralization. There are three factors that cause dental caries: bacteria, diet and tooth susceptibility. Specific pathogens on the tooth surface ferment sugars to produce organic acids that erode the tooth surface.