Question 89 · LDEK · Irrigation and intracanal medicaments
Indicate the true statements on the properties of citric acid used as an irrigant solution in endodontic treatment:
1) it is an alternative irrigating solution to EDTA;
2) it well dissolves inorganic remnants;
3) it has bleaching properties;
4) together with NaOCl, effectively removes the smear layer;
5) it is effective against anaerobic bacteria.
The correct answer is:
2) it well dissolves inorganic remnants;
3) it has bleaching properties;
4) together with NaOCl, effectively removes the smear layer;
5) it is effective against anaerobic bacteria.
The correct answer is:
- A. 1,2,3.
- B. 3,4,5.
- C. 1,2,4,5.
- D. 1,3,4,5.
- E. all the above.
Hint
Citric acid is a demineralizing, chelating agent; decide which listed properties fit an acid and which belong only to oxidizing agents.
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