Table 2 Ultrasound time (UST) and cumulative dissipated energy (CDE) by group
GroupUSTCDE
Lin Tor+US (n = 66) (SD)47.77 (17.23)15.89 (6.86)
Fixed Tor (n = 65) (SD)42.41 (16.05)15.51 (5.59)
US (n = 67) (SD)61.01 (18.84)17.43 (7.21)
F value*146.4946.889
p Value⩽0.0001⩽0.0001
  • *One-way ANOVA.

  • Fixed Tor, Fixed Torsional amplitude group; Lin Tor+US, Linear Torsional combined with Ultrasound energy; US, Ultrasound mode.