Table 1. Mean and Standard Deviation of Porphyromonas gingivalis Colony Count (CFUs/mL) After the Interventions .

Group	Mean±SD×105	Range×105
		Minimum	Maximum
Control	4.5 ± 0.03	4.47	4.53
CHX	0.0 ± 0.0	0.0	0.0
Phycocyanin	3.93 ± 0.08	3.86	4.02
Laser	3.83 ± 0.02	3.78	3.88
Phycocyanin + Laser	2.51 ± 0.08	2.44	2.6

SD, Standard deviation; CHX, chlorhexidine.