Fig. 9
From: Efficiency of biofilm removal by combination of water jet and cold plasma: an in-vitro study
The stack diagram shows the distribution of the categorised OD values (clear, slightly turbid, and turbid) after treatment with water jet (WJ), curette + cotton swab (CC), WJ or CC combined with cold atmospheric pressure plasma CAP (WJ + CAP, CC + CAP), and the two untreated controls, the sterile positive control (PC), and biofilm covered negative control (NC). Turbidity was measured after 0, 8, 16, 20, 24, 48, and 96 h incubation time