6 phases of the process of caries(5) The demineralized lesion develops toward the dentine.The enamel rods are destroyed and the cavity is formed Near the dentinal enamel junction,the lesion in the occlusal surface is triangular. Because the surface zone may be relatively complete,the lesion is "hidden", which is called undermined caries or concealed caries. The lesion looks like that ink immerses in the tooth surface
6 phases of the process of caries(5) • The demineralized lesion develops toward the dentine. The enamel rods are destroyed and the cavity is formed. • Near the dentinal enamel junction, the lesion in the occlusal surface is triangular. • Because the surface zone may be relatively complete, the lesion is “hidden” , which is called undermined caries or concealed caries. • The lesion looks like that ink immerses in the tooth surface
6 phases of the process of caries(6) The surface is destroyed. We can see a cavity in the tooth crown
6 phases of the process of caries(6) • The surface is destroyed. • We can see a cavity in the tooth crown
Pathological Process of Dentine Caries The carious lesion in the dentin layer goes along the dentinal tubules and is cone-shape
Pathological Process of Dentine Caries • The carious lesion in the dentin layer goes along the dentinal tubules and is cone-shape
坏死区zone of des truction) 细菌侵犯区亿one of bacterial invasion) 脱矿区zone of de mineralization) 硬化区(translucent zone) dentine caries
坏死区(zone of des (zone of des (zone of des (zone of des truction) truction) truction) truction) 细菌侵犯区(zone of (zone of (zone of (zone of bacterial invasion) bacterial invasion) bacterial invasion) bacterial invasion) 脱矿区(zone of de (zone of de (zone of de (zone of de mineralization) mineralization) mineralization) mineralization) 硬化区(translucent (translucent (translucent (translucent zone) dentine caries