√Zone of destruction: There are destroyed dentinal tubules, oral bacterial colonies,and matrix. ·Soft ·Removed easily
�Zone of destruction: • There are destroyed dentinal tubules, oral bacterial colonies, and matrix. • Soft • Removed easily
Zone of bacterial invasion: Oral microbes go into the dentine tubules. We should remove the infectious tissue when doing treatment
� Zone of bacterial invasion: • Oral microbes go into the dentine tubules. • We should remove the infectious tissue when doing treatment
Zone of demineralization: Minerals in the peritubular dentin is dissolved. Dentinal tubules are relatively intact. A small amount of microbes exist
�Zone of demineralization: • Minerals in the peritubular dentin is dissolved. • Dentinal tubules are relatively intact. • A small amount of microbes exist
The translucent zone: ·It is remineralized. The permeability of dentine tubules is low. The hard dentin tissue is called leathery dentin,which should be preserved
�The translucent zone: • It is remineralized. • The permeability of dentine tubules is low. • The hard dentin tissue is called leathery dentin, which should be preserved
√Reparative dentine: It is formed at the wall of pulpal cham ber corresponding to the cavity to prot ect the pulp from the harm stimuli. CARIES 图tctd Affected BARRIERS 快 Secondary Dentine
�Reparative dentine: • It is formed at the wall of pulpal cham ber corresponding to the cavity to prot ect the pulp from the harm stimuli