From: Evaluation and comparison between the bactericidal effect of diode laser irradiation (970 nm) and silver nanoparticles on Enterococcus faecalis bacterial strain (an in vitro study)
Time (s)
Group
P values
I
II
III
Mean
SD
40
220.2 a
20.7
15.01 a
0.60
8. 1 b
2.1
< 0.001*
30
206.3 a
25.9
22.00 a
0.54
27.6 b
3.9
20
155.2 a
27.2
28.04 a
0.50
35.5 b
4.5
P value
0.987
0.194
0.060