Table 1
Parameters for Fixed Torsional (Fixed Tor) and Linear Torsional+Ultrasound (Lin Tor+US) and Ultrasound groups (US)
Group
Fixed Tor
Lin Tor+US
US
Torsional amplitude
100% (fixed)
100% (linear)
Ultrasound power (%) (burst)
0
30% (linear)
60
Vacuum limit (mm Hg) (fixed)
400 (fixed)
400 (fixed)
400
Aspiration flow rate (cm3/min) (fixed)
40 (fixed)
40 (fixed)
40