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. 2020 Jun 24;9:642. [Version 1] doi: 10.12688/f1000research.24721.1

Table 2. Median of colony forming units/mL for E. coli and E. faecalis in all samples (S1, S2 and S3).

NaOCL, sodium hypochlorite; PUI, passive ultrasonic irrigation.

E. coli E. faecalis
Samples S1 S2 S3 S1 S2 S3
NaOCl 30x10 4
(366x10 4- 10x10 4)
A-a		 0
(0-0)

B-a		 0
(0-0)

B-a		 314.95x10 4
(68x10 5- 56.6x10 4)

A-a		 0
(0-0)

B-a		 0
(0-0)

B-a
NaOCl + PUI 983x10 4
(29x10 6- 3x10 6)

A-b		 0
(0-0)

B-a		 0
(0-0)

B-a		 585x10 4
(79x10 5-26.6x10 4)
A-a		 0
(0-0)

B-a		 0
(0-0)

B-a
NaOCl gel 45x10 4
(756x10 4- 1x10 4)

A-a		 0
(0-0)

B-a		 0
(0-33667)
B-a		 218x10 4
(686x10 4- 1x10 4)

A-a		 0
(0-333)

B-a		 0
(0-0)

B-a
NaOCl gel + PUI 88333
(880x10 4-33x10 6)
A-a		 0
(0-0)

B-a		 0
(0-0)

B-a		 485x10 4
(71x10 5- 18x10 5)

A-a		 0
(0-333)

B-a		 0
(0-0)

B-a

*Different letters indicate statistically significant differences (p<0.05). Uppercase letters indicate difference in rows (Friedman test; intra-groups) and lowercase letters indicate difference in columns (Kruskal-Wallis test; inter-groups).