E shaver, in an effort to permit the speedy removal in the curetted tissue.80 The amount of rotations per minute with the inner cannula varies in unique research. Lee et al (2005)72 indicate that the system need to be adjusted to keep the inner cannula at 1500 rpm, inside the oscillatory mode. Wu et al (2009)80 made use of it at 2500rpm, whilst Chern et al (2010)74 would rather have it at 500 rpm.