hi you must have a funny way of working in the states in the uk they set the ex-ray up and the dentist and his nurse go out of the room so why are you holding and ex-ray cone are you sure that's allowed. but if that is what you are doing then no no way should you be doing that tell your dentist to hold it why you go out of the room. do hope this helps. good luck
can a pregnant dental assistant take x-rays? . the dental assistant most of the time has to hold the xray cone or the digital sensor in the patient's mouth when x-ray is taken.