Table 5.

The results of ANOVA factorial test and post hoc of the treatments

Factor	Grup	N	% reduction of bacterial viability		ANOVA Factorial test
			average	SD	Sig	conclusion
Laser	Laser 10 s(a)	4	42.74	5.49	p = 0.000	Significant difference
	Laser s 30 s (ab)	4	44.91	1.69
	Laser 50 s(ab)	4	46.28	1.90
	Laser 70 s (ab)	4	48.37	4.28
	Laser 90 s (abc)	4	69.33	3.61
	Laser 120 s (c)	4	88.50	2.83
	Total	72	61.76	3.26
Doxy 0.1%	Doxy 10 s (ab)	4	44.92	2.50	p = 0.000	Significant difference
	Doxy 30 s (ab)	4	49.05	3.95
	Doxy 50 s (ab)	4	50.61	3.97
	Doxy 70 s (abc)	4	57.08	3.05
	Doxy 90 s (abc)	4	59.19	3.93
	Doxy 120 s (abc)	4	59.64	3.62
	Total	72	61.76	3.26
	Laser+Doxy 10 s (abc)	4	58.30	3.05	p = 0.000	Significant difference
	Laser+Doxy 30 s (abc)	4	70.70	2.43
	Laser+Doxy 50 s (abc)	4	77.20	2.03
Laser Doxy 0.1%	Laser+Doxy 70 s (abc)	4	77.60	2.82
	Laser+Doxy 90 s (bc)	4	78.50	1.70
	Laser+Doxy 120 s (c)	4	88.79	2.60
	Total	72	61.76	19.26