Table 1: Mean and standard deviation of control and test groups.

Bacteria type	Group	N	Mean	Standard deviation	Kruskal-Wallis test	P
S. aureus	Untreated group	20	2.915	1.0297	46.747	0.0005
	Microwave disinfected	20	0.185	0.5806
	Chemically disinfected	20	0.145	0.4605
	Total	60
P. aeruginosa	Untreated group	20	4.505	2.2444	41.68	0.0005
	Microwave disinfected	20	0.645	1.3839
	Chemically disinfected	20	0.145	0.6485
	Total	60

S. aureus: Staphylococcus aureus, P. aeruginosa: Pseudomonas aeruginosa