Table 3.

Bleeding Volume Aanalysis of Variance Results

Stable	Sum of squares		Degrees of freedom	Mean square	F	P
	Total	32.28	236
RedLaser	Intergroup	0.72	2	0.36	1.29	0.39
	Within	65.52	234	0.28
	Total	66.24	236
GreenLaser	Intergroup	1.02	2	0.51	2.68	0.21
	Within	44.46	234	0.19
	Total	45.48	236
Plasma	Intergroup	1.86	2	0.93	7.15	0.029
	Within	30.42	234	0.13