Effectiveness of Alternative Methods for Toothbrush Disinfection: An In Vitro Study

Table 5

Kruskal Wallis test for E. coli.

Bacteria	Method	Mean	Standard deviation	Minimum	Maximum	Median	Kruskal Wallis test	𝑃 value	Statistically significant difference
E.  coli	1% NaOCl; 50% white vinegar; 100% white vinegar; MW; UV; MCP; Control	5.7 × 10; 4.9 × 10^3; 1.9 × 10^2; 1.4 × 10^4; 1.3 × 10^6; 9.2 × 10^6; 1 × 10^8	1.9 × 10; 5.5 × 10^3; 6.7 × 10; 2.6 × 10^3; 1 × 10^5; 4.4 × 10^6; 6.7 × 10^7	2.8 × 10; 7.2 × 10; 1.1 × 10^2; 1.1 × 10^4; 1.7 × 10^6; 5.9 × 10^6; 2.2 × 10^7	8.8 × 10; 1.4 × 10^4; 3.3 × 10^2; 1.8 × 10^4; 1.5 × 10^6; 2.1 × 10^7; 2 × 10^8	5.7 × 10; 2.1 × 10^3; 1.8 × 10^2; 1.4 × 10^4; 1.3 × 10^6; 7.8 × 10^6; 9.3 × 10^7	6.7 × 10^4	0.000*	*MCP and 1% NaOCl; *MCP and 50% white vinegar; *MCP and 100% white vinegar; *MCP and MW; *MCP and UV; *Control and 1% NaOCl; *Control and 50% white vinegar; *Control and 100% white vinegar; *Control and MW; *Control and UV; *Control and MCP; *MW and 1% NaOCl; *MW and 50% white vinegar; *MW and 100% white vinegar; *MW and UV; *MW and MCP; *UV and 1% NaOCl; *UV and 50% white vinegar; *UV and 100% white vinegar; *UV and MW; *UV and MCP

∗Statistically significant difference 𝑃<0.05.