The odontoblasts killed during cavity preparation are derived from_____________?
Correct answer: D. Undifferentiated cells
- A. Unaffected odontoblasts from the pulp
- B. Osteoblasts
- C. Histocytes
- D. Undifferentiated cells
Explanation
When the original odontoblasts are destroyed by operative injury, odontoblast-like replacement cells differentiate from undifferentiated mesenchymal cells in the pulp. Surviving odontoblasts may respond to mild injury, but they do not account for replacement after cell death.
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