Table 2:
Mean biofilm thickness over a period of 28 days with different treatments.
Week
Biofilm thickness for different tubes
𝜇
m
Ozone only
Ozone + ultrasound
2
26, 18, 17, 18
9, 8
3
43, 15, 24, 20
11, 12
4
111, 49, 60, 51
7, 5