Table 5. Comparison of mean difference between study groups in the zone of inhibition diameter, using Tukey-HSD test.

Groups	ZnO 1%	TiO2 0.5%	AgO 1%	TiO2 1%	CuO 1%	Control	HA 0.50%	AgO 0.5%	HA 1%	ZnO 0.50%	CuO 0.50%
CuO 0.5%	1.5	1.5	-1.625	1.5	-0.5	1.5	1.5	-1	1.5	1.5	--
p-valor	<0.001	<0.001	<0.001	<0.001	0.237	<0.001	<0.001	<0.001	<0.001	<0.001
ZnO 0.5%	0	0	-3.125	0	-2	0	0	2.5	0	--	1.5
p-valor	1	1	<0.001	1	<0.001	1	1	<0.001	1		<0.001
HA 1%	0	0	-3.125	0	-2	0	0	-2.5	--	0	1.5
p-valor	1	1	<0.001	1	<0.001	1	1	<0.001		1	<0.001
AgO 0.5%	2.5	2.5	-0.625	2.5	0.5	2.5	2.5	--	-2.5	2.5	-1
p-valor	<0.001	<0.001	0.049	<0.001	0.237	<0.001	<0.001		<0.001	<0.001	<0.001
HA 0.5%	0	0	1.2503	0	-2	0	--	2.5	0	0	1.5
p-valor	<0.001	1	<0.001	1	<0.001	1		<0.001	1	1	<0.001
Control	0	0	-3.125	0	-2	--	0	2.5	0	0	1.5
p-valor	1	1	<0.001	1	<0.001		1	<0.001	1	1	<0.001
CuO 1%	2	2	-1.125	2	--	-2	-2	0.5	-2	-2	-0.5
p-valor	<0.001	<0.001	<0.001	<0.001		<0.001	<0.001	0.237	<0.001	<0.001	0.237
TiO2 1%	0	0	-3.125	--	2	0	0	2.5	0	0	1.5
p-valor	1	1	<0.001		<0.001	1	1	<0.001	1	1	<0.001
AgO 1%	3.125	3.125	--	-3.125	-1.125	-3.125	1.2503	-0.625	-3.125	-3.125	-1.625
p-valor	<0.001	<0.001		<0.001	<0.001	<0.001	<0.001	0.049	<0.001	<0.001	<0.001
TiO2 0.5%	0	--	3.125	0	2	0	0	2.5	0	0	1.5
p-valor	1		<0.001	1	<0.001	1	1	<0.001	1	1	<0.001
ZnO 1%	--	0	3.125	0	2	0	0	2.5	0	0	1.5
p-valor		1	<0.001	1	<0.001	1	1	<0.001	1	1	<0.001