Table 6 At fixed speed, average amount of aerosol produced under different air-water ratios was compared at 30 cm
Distance | Handpiece speed | Air-water coolant | Av. Aerosol | p-Value |
|---|---|---|---|---|
30 cm | 10,000 rpm | 20% water 30% water 40% water | 6.9 7.5 20.4 | 0.223 |
20,000 rpm | 20% water 30% water 40% water | 7.4 13.4 13.7 | 0.234 | |
30,000 rpm | 20% water 30% water 40% water | 16.8 13.6 41.3 | 0.244 | |
40,000 rpm | 20% water 30% water 40% water | 16.8 49.8 53.2 | 0.079 |