Question 144 (part 2) · LDEK · Irrigation and intracanal medicaments

Teeth treated with revascularisation method during first visit. Following patter of canal rinsing is advised (guidelines of American Endodontic Treatment):

  1. A. 2 ml of 5 % sodium hypochlorite, 5 ml of 0,9% sodium chloride and 20 ml of 2 % chlorhexidine; all of rinsing solutions should remain in canal for 5 minutes.
  2. B. 10 ml of 5 % sodium hypochlorite for 10 minutes, 20 ml of 17% EDTA.
  3. C. 20 ml of 1.5 % sodium hypochlorite for 20 minutes, 5 ml of 0,9% sodium chloride and 20 ml of metronidazole.
  4. D. 20 ml of 1.5 % sodium hypochlorite for 5 minutes, 5 ml of 0,9% sodium chloride and 20 ml of 17% EDTA, 5 ml of 0,9% sodium chloride.
  5. E. 20 ml of 17% EDTA, 6 % of sodium hypochlorite for 2 minutes, 5 ml of 0,9% sodium chloride.
Hint

In regenerative protocols the irrigant must disinfect while sparing stem cells of the apical papilla; think low concentration and gentle delivery.

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