Table 1. Comparative differences of mean bacterial levels (total bacterial load) and P. gingivalis observed at T1 and T2 and mean bacterial levels observed at T0 between individuals who performed the pre-procedural rinse or not according to periodontal diagnosis.

			Differences of mean bacterial levels (T1,T2) - TO
			qPCR		Culture
Periodontal diagnosis	Culture	Pre-procedural rinse	Total bacterial load	Levels of P. gingivalis	Aerobic bacterial	Anaerobic bacterial
			(Primer universal)	(qPCR)	levels	levels
Gingivitis	Negative	No	30,176.0	0.0	1.5	0.4
		Yes	-6,303.6	0.2	0.0	0.0
		p-valor	0.85	1.00	0.55	0.81
	Positive	No	-6,422.5	0.1	115.8	8.8
		Yes	4,643.4	0.9	10.8	5.3
		p-valor	0.15	0.39	0.64	0.51
Periodontitis	Negative	No	1,783.5	-1.8	0.9	0.0
		Yes	-6,4959.0	1.2	0.0	0.0
		p-valor	0.70	0.70	0.62	1.00
	Positive	No	3,316.4	576.1	41.2	2.6
		Yes	-9,538.3	0.1	152.9	49.0
		p-valor	0.41	0.32	0.83	0.85

Mann-Whitney test (pre-procedural rinse positive vs. negative). Results were considered statistically significant when p<0.05