Fig. 2.

Cross sectional SEM images of dentin surface morphology and tubular occlusion (a) Control group (before acid challenge) (b) Group employing ozonated oil (before acid challenge) (c) Group employing desensitizing agent (before acid challenge) (d) Group employing ozonated oil followed by desensitizing agent (before acid challenge) (e) Group employing desensitizing agent (following acid challenge) at 15000× magnification (f) Group employing ozonated oil followed by desensitizing agent (following acid challenge) at 15000×

magnification.