Question 173 · LDEK · Irrigation and intracanal medicaments
Indicate the true statements regarding 2% chlorhexidine used in endodontics:
1) can be used as an alternative to sodium hypochlorite;
2) binds to the positively charged cytoplasmic membrane of bacterial cells;
3) is neutralized in the root canal in the presence of organic tissue;
4) has antifungal properties;
5) has the ability to bind to hydroxyapatite.
The correct answer is:
2) binds to the positively charged cytoplasmic membrane of bacterial cells;
3) is neutralized in the root canal in the presence of organic tissue;
4) has antifungal properties;
5) has the ability to bind to hydroxyapatite.
The correct answer is:
- A. 1,2,5.
- B. 2,3,4.
- C. 3,4,5.
- D. 1,2,4.
- E. 1,3,5.
Hint
Remember that CHX is a cationic molecule, and recall its substantivity, its spectrum and how organic matter affects it.
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