Fig. 6
Time consumed for adhesive resin removal in 6 subgroups. This graph applies a p-values of multiple comparison procedure to determine which means are significantly different from which others. The method currently being used to discriminate among the means is Fisher's least significant difference (Tukey HSD) procedure. * = P < 0.05, ** = P < 0.01, *** = P < 0.001, ns = P > 0.05