Mean ultrasound time , cumulative dissipated energy , and longitudinal and torsional ultrasound amplitudes in Group 1 were 58.2133.81 seconds , 7.746.23 , 0.450.30 , and 26.3012.60 % , respectively , and these parameters in Group 2 were 64.7530.23 seconds , 12.616.21 , 26.325.85 , and 40.988.33 % , respectively .