It is not unusual to experience sensitivity for a while with a new crown. There are different variations of sensitivity one may experience. If the discomfort comes while chewing foods, consider returning to your dentist for an adjustment. If it is just random discomfort, you may try switching to a sensitivity toothpaste for a few weeks. Be sure and floss daily because gingivitis may cause sensitivity. I strongly advise mentioning it to your provider so that he or she can test the tooth in order to determine if further treatment is needed.
Dana Truesdale, DDS