Figure 3. Representative photomicrographs of the cross sections of the apical region of mandibular premolars from Group WOG (WaveOne Gold Medium, 35/.06). (A) 100x magnification. (B) 400x magnification; note the presence of instrumented walls, with regular contours and no debris (pink arrow). (C) 400x magnification; note the area with unprepared walls (green arrow) and with the occasional presence of remaining debris (blue arrow).
