Irrigation

NaOCl & CHX

• The time required to eliminate E. faecalis depended on the concentration and type of irrigant used.
• Chlorhexidine in the liquid form at all concentrations tested (0.2%, 1% and 2%) and NaOCl (5.25%) were the most effective irrigants. However, the time required by 0.2% chlorhexidine liquid and 2% chlorhexidine gel to promote negative cultures was only 30 s and 1 min, respectively.
• Gomes et al.(2001)

Temperature

• Higher temperatures potentiate the antimicrobial and tissue-dissolving effects of NaOCl.
• Increasing the temperature of hypochlorite irrigant to 370C, significantly increased its tissue dissolving ability

• Cunningham &Balekjian (1980)

Temperature

• Both the debriding and disinfection properties of 2.6% NaOCl are enhanced in vitro by elevating the temperature of the solution to 370C.

• Cunningham et al. (1980)