Table 2.

Results of Mann–Whitney test with Bonferroni adjustment for comparing the two groups.

Groups	RCC mean
	p value
Sodium hypochlorite, negative control group	0.001
Erbium chromium laser, negative control group	0.943
Silver nanoparticles, negative control group	0.001
Erbium chromium laser and silver nanoparticles, negative control group	0.102
Silver nanoparticles, sodium hypochlorite	0.001
Erbium chromium laser, sodium hypochlorite	0.001
Erbium chromium laser and silver nanoparticles, sodium hypochlorite	0.001
Silver nanoparticles, erbium chromium laser	0.001
Silver nanoparticles, erbium chromium lasers and silver nanoparticles	0.009
Silver nanoparticles and erbium chromium laser, erbium chromium laser	0.152