Endodontics · single question
Most common ways bacteria enter the pulp, EXCEPT:
Show answer and explanation
Correct answer: D. Blood flow
- A. Caries is the single most common route of pulpal infection.
- B. Fracture/cracks expose dentinal tubules and pulp.
- C. Mechanical/iatrogenic exposure (e.g., during preparation) is a common direct route.
- D. Correct. Anachoresis (seeding via the blood) is theoretical and the LEAST common route, so it is the exception.