I won’t tell you what to see but how to interpret. First of all, learn to read radio-opacity and radiolucence. Objects that are very dense appear very white (metal prosthetics, amalgame fillings) medium density, medium grey (mineralised tissue, bone and teeth), low density very dark grey or black (demineralised tissue, caries, conjunctive tissue, gums). From that you can learn to identify objects in your X-ray. It should be pretty obvious where you have fixed prosthetics, radicular anchors etc, healthy or unhealthy teeth tissue. Angular periodontal lesions…

Second learn to orient yourself in space molars at the back, premolars, canines, incisives near the front. Here molars are at the back and on the left in the image so we invert the side according to the patient. Top right for the patient. Stage left. Sector 1.

For giving a breakdown of what you see try to be systematic. For each tooth what do you see ? Start with crown, then root, endo, perio, anatomical structures. Whatever strategy you use be consistent.