Question 32 · LDEK · Irrigation and intracanal medicaments
The recommended time for EDTA to be left in the canal in order to remove the smear layer is:
- A. 10 seconds.
- B. 30 seconds.
- C. 1 minute.
- D. 2 minutes.
- E. 5 minutes.
Hint
The contact time must be long enough to remove the smear layer yet short enough to avoid eroding dentin.
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