I need help...I gag terribly at the dentist when taking x-rays!?

The chloroceptic spray works well...you could also try rinsing with mouthwash right before they take the x-ray. Anything to numb the back of your mouth/throat will help decrease your gag reflex. Remember to breath through your nose and relax your tongue. A panoramic x-ray can't be used to diagnose decay (cavities) so that is not an option. Good luck tomorrow...the more you go to the dental office the more comfortable you feel and the easier the appointments will seem.