Table 1 Comparison of the mean CFUs between the three disinfection methods (ANOVA).

From: Efficacy and design requirements of UV light cabinets for disinfection of exchangeable non-sterilizable “dental objects”

Object

Disinfection method

Mean CFU

Standard deviation

F (df)±

p value

Silicone impression (SI)

Untreated

171,833.33

21,673.72

152.578 (2)

 < 0.001*

UV

0.00

0.00

Zeta 7 spray

41,333.33

2179.45

Stone cast (SC)

Untreated

69,333.33

20,025.68

25.950 (2)

0.001*

UV

0.00

0.00

Zeta 7 spray

20,722.22

6185.41

Acrylic base (AB)

Untreated

217,611.11

8866.81

178.686 (2)

 < 0.001*

UV

0.00

0.00

Zeta 7 spray

87,166.67

22,924.39

Indelible pen (IP)

Untreated

42,777.78

5058.91

147.645 (2)

 < 0.001*

UV

0.00

0.00

Zeta 7 spray

5888.89

2678.79

  1. *p < 0.05, significant.
  2. ±F Statistic ANOVA (degree of freedom).