Question 585 · LDEK · Irrigation and intracanal medicaments
Indicate the true statements regarding the effects of root canal irrigants:
1) it is recommended using aqueous EDTA solutions every time after using an instrument.
2) sodium hypochlorite helps to effectively remove the smear layer.
3) a 2% chlorhexidine solution can effectively eliminate E. faecalis from infected root canals.
4) sodium hypochlorite eliminates C. albicans from the endodontic biofilm.
The correct answer is:
2) sodium hypochlorite helps to effectively remove the smear layer.
3) a 2% chlorhexidine solution can effectively eliminate E. faecalis from infected root canals.
4) sodium hypochlorite eliminates C. albicans from the endodontic biofilm.
The correct answer is:
- A. 1,4.
- B. 2,3.
- C. 1,2.
- D. 3,4.
- E. 1,3.
Hint
Consider when chelators are used in the irrigation sequence, which smear layer component NaOCl dissolves, and each irrigant's antimicrobial spectrum.
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