Reversible Pulpitis: Histology
- Secondary (repair) dentin and denticle formation adjacent to the advanced dentin caries.
- Secondary dentin has only few tubules and is bordered by few odontoblasts.
- Within the pulp horn, one notes an accumulation of inflammatory cells.
- Note the initial disintegration of the odontoblastic layer and the obvious inflammatory cell infiltration, without tissue necrosis.
- Bacteria infiltrate coronally into dentinal tubules. At the pulpal wall, neutrophilic granulocytes migrate toward adjacent tubule entrances and release tissue-destructive enzymes.
- Neutrophilic granulocytes, evident in the predentin layer and within dentinal tubules.