Table 5.

Comparison of viral frequency (positive + or negative −) between subjects with and without peri-implantitis. Student's t-test and Mann–Whitney test (p > 0.05).

	Peri-implantitis		p	Healthy		p
	+	−		+	−
				(n = 5 subjects)	(n = 16 subjects)
	(n = 8 subjects)	(n = 13 subjects)
IL-1β	4.56 ± 12.41	6.33 ± 15.03	1.0000	1.91 ± 1.98	2.45 ± 2.64	0.6348
IL-2	0.05 ± 0.04	0.02 ± 0.02	0.2924	0.07 ± 0.08	0.05 ± 0.09	0.3980
IL-4	0.003 ± 0.005	0.001 ± 0,003	0.2796	0.016 ± 0.035	0.02 ± 0.04	0.6930
IL-6	0.96 ± 1.27	0.89 ± 1.23	1.0000	0.84 ± 0.79	0.40 ± 0.33	0.6658
MCP-1	22.11 ± 21.21	23.42 ± 19.18	0.9578	71.60 ± 61.38	105.7 ± 79.43	0.7414
MIP-1α	4.47 ± 3.58	3.41 ± 3.65	0.4722	5.43 ± 4.59	1.42 ± 0.84	0.1500
MIP-1β	3.48 ± 2.35	1.56 ± 2.22	0.0087 ∗	3.81 ± 3.07	2.75 ± 2.05	0.4865
TNFα	1.28 ± 0.98	0.50 ± 0.45	0.0437 ∗	1.99 ± 2.05	0.33 ± 0.14	0.2256

^∗Statistic significant.