龋齿是牙齿健康的大敌,它也是一种历史悠久的疾病。我国古人、亚述人和巴比伦人都认为龋齿是由于牙齿被虫子腐蚀而造成的,但实际并非如此。根据现代医学的观点,龋齿是在以细菌为主的多种外界因素影响下形成的。口腔中的细菌种类很多,但并不是所有的细菌都会引起龋齿,其中致龋性最强的当 Dental caries is the enemy of health, it is also a long history of disease. The ancients, Assyrians and Babylonians in our country think that dental caries are caused by the teeth being eaten by insects, but this is not the case. According to modern medicine, dental caries are formed under the influence of a variety of external factors, mainly bacteria. Many types of bacteria in the mouth, but not all bacteria can cause dental caries, the most cariogenic when