I had a bite wing X-ray taken yesterday and the lower area of my gums cast a dark shadow. The dentist felt the area and tried to move my lower teeth to see if they were loose. She said she had never seen a shadow like that and wanted me to see an oral surgeon. I had also taken a pano digital X-ray of the same area and the dentist who took that last month did not notice any abnormalities. Please let me know if you can what is causing the shadow in one and not the other. Thank you.
Hi dear one this shadow is most probably the developing and fixing error of the imaging X-ray ,,, such shadows are common in PA view bite wing, X-rays. There is no need of worry about this.  If you feel some mobility in nearby teeth, or you feel sensitivity or pain on chewing then there might be some chances of periapical infection or some tress trauma,,,,