Effect of Nd:YAG Low Level Laser Therapy on Human Gingival Fibroblasts

Table 3

Mean (SD) change from the baseline measurement for each group at every time point.

	EGF			VEGF			bFGF
		Mean (SD)	value		Mean (SD)	value		Mean (SD)	value
24 h
Ctrl	4	3.9 (3.8)		4	2.9 (2.1)		4	−0.8 (3.6)
20 s	4	−0.9 (8.8)	0.36	4	1.3 (0.3)	0.18	4	−2.9 (3.1)	0.41
40 s	4	−3.4 (11.2)	0.27	4	1.6 (1.3)	0.34	4	−1.9 (3.1)	0.65
60 s	4	−6.4 (8.6)	0.07	4	1.5 (0.4)	0.25	4	−0.4 (2.4)	0.87
120 s	4	11.3 (19.3)	0.48	4	4.9 (1.5)	0.18	4	−0.4 (1.8)	0.86
48 h
Ctrl	4	−9.6 (19.3)		4	3.3 (3.0)		4	−0.4 (1.9)
20 s	4	16.7 (5.6)	0.04	4	7.0 (4.2)	0.20	4	1.3 (2.4)	0.33
40 s	4	9.9 (18.2)	0.19	4	4.0 (3.8)	0.77	4	−0.6 (1.4)	0.84
60 s	4	2.5 (22.9)	0.45	4	3.3 (2.2)	0.51	4	−0.3 (2.7)	0.94
120 s	4	−1.1 (4.8)	0.43	4	6.0 (7.4)	0.42	4	0.4 (1.1)	0.52
72 h
Ctrl	4	−0.1 (11.4)		4	3.8 (6.1)		4	0.4 (3.4)
20 s	4	7.9 (7.7)	0.29	4	4.5 (4.4)	0.85	4	1.1 (2.3)	0.73
40 s	4	10.4 (11.5)	0.24	4	5.3 (5.7)	0.73	4	1.0 (1.1)	0.74
60 s	4	−5.3 (12.7)	0.57	4	2.6 (2.9)	0.75	4	−2.1 (3.3)	0.34
120 s	4	−1.9 (3.4)	0.78	4	3.6 (4.6)	0.98	4	−0.6 (2.3)	0.65

-test versus control.