3.6 POJA-L101A nr. 9.
Scheme survey tooth (longitudinal section)
3.6 POJA-L101A nr. 9
Title: Scheme survey tooth (longitudinal section) Description: Scheme canine tooth in osseous alveolus, human. Red triangle: part of the pulpo-dentinal complex. Keywords/Mesh: oral cavity, mouth, tooth, enamel, dentin, reactive dentin, pulp canal, histology, POJA collection |
3.7 POJA-L110.
Pulpo-dentinal complex in longitudinal section of tooth
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3.7 POJA-L110
Title: Pulpo-dentinal complex in longitudinal section of tooth
Description:
Tooth with damaged dentin, stain hematoxylin-eosin, human adult. If odontoblastic processes are damaged (e.g. erosion, caries etc.) the majority of the cells degenerates but some cells survive and will continue to deposit reparative dentin to seal off the zone of injury. Initiated from the pulpar perivascular stem cells the dead cells are replaced by migrating pulpar cells that differentiate into new odontoblasts. The latter also contributes to the formation of reparative (or reactive) dentin together with the surviving old odontoblasts. The reactive dentin shows fewer and more twisted tubules. From left to right:
Title: Pulpo-dentinal complex in longitudinal section of tooth
Description:
Tooth with damaged dentin, stain hematoxylin-eosin, human adult. If odontoblastic processes are damaged (e.g. erosion, caries etc.) the majority of the cells degenerates but some cells survive and will continue to deposit reparative dentin to seal off the zone of injury. Initiated from the pulpar perivascular stem cells the dead cells are replaced by migrating pulpar cells that differentiate into new odontoblasts. The latter also contributes to the formation of reparative (or reactive) dentin together with the surviving old odontoblasts. The reactive dentin shows fewer and more twisted tubules. From left to right:
- Irregular course of dentinal tubules.
- Light stained (damaged) area contain no tubules.
- Pulp connective tissue