Figure 5: Cropped image of orthopantomogram showing lower molars of the right side. The third molar’s crown is radiologically of full radiopacity, the enamel to dentine border can be seen and roots are not developed: a continuous radiopaque line surrounds the developing tooth (1 = enamel, 2 = dentine, 3 = pulp cavity, 4 = periodontal space, 5 = lamina dura, 6 = cortical bone (lower border of mandible).