人们都知道龋齿最容易发生在牙齿的窝沟部位和两牙之间的临面。那么根面龋是怎么回事,它是如何产生的呢? 根面龋是发生在牙颈部和牙根面上的龋齿。在正常情况下,牙根面被牙龈组织所包裹,牙颈部也有牙龈保护,所以不会发生龋齿。但人到老 People know that dental caries most likely to occur in the pit of the tooth and the face between the two teeth. So root caries is how the matter, how is it produced? Root caries is the occurrence of dental caries in the surface of the teeth and roots. Under normal circumstances, the root surface is covered by gingival tissue, cervical and gums are also protected, so there will be no dental caries. But people are old