Table 3. Mean ± SD Colony-Forming Units for Staphylococcus aureus and Staphylococcus epidermidis in the Studied Groups on Days 0, 10, and 20 .

Day	Bacteria Group	S. epidermidis	S. aureus
0	Control	83.33 ± 29.43	0±0
	Low-PBM	166.66 ± 30.55	0±0
	Arginine	353.33 ± 128.58**	0±0
	Low-PBM+ARG	165.00 ± 49.49	0±0
	High-PBM	395.00 ± 186.45**	0±0
	High-PBM+ARG	216.00 ± 141.70	0±0
10	Control	96788.00 ± 4529.31	98021.80 ±1920.13
	Low-PBM	180.00 ± 28.28***	4800.00 ± 380.21
	Arginine	370.00 ± 127.27***	3640.00 ± 56.56
	Low-PBM+ARG	370.00 ± 127.27***	0±0
	High-PBM	1163.33 ± 352.91***	0±0
	High-PBM+ARG	11333.33 ± 2753.78***	98566.66 ± 3510.93
20	Control	97390.00 ± 4231.00	0±0
	Low-PBM	92893.33 ± 2591.16	0±0
	Arginine	713.33 ± 70.23***	0±0
	Low-PBM+ARG	95200.00 ± 6788.22	0±0
	High-PBM	843.33 ± 171.30***	0±0
	High-PBM+ARG	95000.00 ± 5477.22	0±0
Due to tremendous differences in the colony-forming units for S. aureus in the studied groups, we could not perform statistical analyses. ** P < 0.01 and *** P < 0.001: Significant differences in S. epidermidis between the treatment and control groups; PBM, photobiomodulation.