龋病病变是一个比较复杂的过程,至今人们还未把它的全部内容弄清楚。近年以来,人们对于龋病过程中出现的再矿化(Remin-eralization)现象,给以比较多的注意。其实,再矿化现象在本世纪早期就已被人们发现,不过未能引起人们的足够重视而巳。龋病过程中是否也和机体其它疾病一样具有防御或修复的反应呢?长期以来,关于龋病破坏的第一关——牙釉质是否具有物质代谢有很多的争论。但是,近年来许多资料 Caries lesions is a complex process, so far it has not been fully understood. In recent years, people pay more attention to the phenomenon of remin-eralization during caries. In fact, the remineralization phenomenon was discovered by people in the early part of this century, but it failed to attract enough attention from people. Does caries have the same defensive or repair response as any other disease in the body? There has been a long debate about whether caries destruction, the first level of enamel, has material metabolism. However, in recent years a lot of information