Table 4
Surface bacterial contamination of trolleys (n=51) near dental units
Surface bacterial contamination (cfu/24 cm
2
)
Agar plates
Fungi
Staphylococcus aureus
β-haemolytic streptococci
Positive samples (%)
100.0
60.8
9.8
13.7
Mean
67
12
96
7
SD
145
20
123
6
Median
13
4
40
8
Minimum
5
1
8
1
Maximum
630
85
300
16