Effect of Addition of Cetylpyridinium Chloride Cationic Surfactant on the Antimicrobial Activity of Chlorhexidine Endodontic Irrigant

Table 1

Kruskal–Wallis test analysis of the CFU/mL mean ranks of all groups.

Microorganisms		CHX	CHX + CPC	MTAD	Kruskal–Wallis	p-Value
E. faecalis	Mean rank	16.30	13.50	16.70	2.248	0.325
S. aureus	Mean rank	13.00	14.35	19.15	6.399	0.041
C. albicans	Mean rank	13.50	11.50	21.50	9.704	0.008

Note: The Kruskal–Willis test revealed that there was a significant difference in CFU/mL mean ranks among S. aureus and C. albicans subgroups as . CHX, chlorhexidine; CPC, cetylpyridinium chloride. Bold values illustrate a significant difference between tested subgroups .