Article Figures & Data
Figures
- Figure 1.
A quadrant system (not to scale) with concentric rings was used to photograph, organize and analyze the aerosol stain data. The zones consist of a series of nested concentric rings each situated with perimeters 3 inches apart (refer to Table I).
- Figure 2.
Dental simulation unit showing the operator performing ultrasonic scaling on teeth # 6-11 using HVE.
- Figure 3.
Image series showing the reduction in detectable particle concentrations on the floor while ultrasonic scaling using a SE (left) and while using HVE (right).
Each square represents a commensurate 3 x 3-inch section taken from the southern quadrant of the floor (4.5-7.5 inches from origin).
Note: The curved outline of the operator’s shoe is visible in images reflecting SE use only, with evidence that the foot was moved part-way through the test.
A: Raw image showing blue-stained particles
B: Particles isolated after digital thresholding
C: Particles identified and subsequently quantified for analysis.
- Figure 4.
Particle count by quadrant. Saliva ejector (SE) (Red Orange) and High-volume evacuation (HVE) (Yellow orange).
Differences in scale for particle count: SE: 0 – 30,000, HVE: 0 – 300.
