Antibacterial Effects of the Novel Blue Laser and Erbium Chromium Laser on Enterococcus Faecalis in Root Canal Dentin with Different Thicknesses

Table 3

Comparison of the number of bacteria in different thicknesses for each group.

Group	Thickness	P-value
Er, Cr:YSGG laser	0.3	0.019
	0.5
	1.0
445 nm diode laser	0.3	0.004
	0.5
	1.0
Er, Cr:YSGG laser +445 nm diode laser	0.3	0.531
	0.5
	1.0
Control	0.3	0.212
	0.5
	1.0

Kruskal-Wallis test with a significance level of less than 0.05.