Figure 3 Exemplary scanning electron micrographs images, representing various levels of surface roughness at one location on the MLZ specimen at different sterilization cycles. Gp – group; AC – autoclaving cycle; Gp S – standard steam sterilization; Gp F – immediate/flash sterilization; 1, 10, 20 – number of autoclave cycles. These scanning eelctron micrograph images are single images taken at one particular location of the sample while the average roughness values were taken at average of three different location. Therefore, this image does not present the true picture of the mean average roughness values have been presented in the study. The images are more representative of the type of roughness that was odserved in two different steam sterilization cycles.