question: Dear Dr. Andrew six days ago I was prepped for a crown a piece of my molar broke and my dentist said I needed a crown . After the novacaine wore off my tooth has been aching since I have been taking Advil every 5 to six hours. what do you think is the cause of the pain. I am waiting for the permanent crown but I don t believe the dentist should put that crown on until we find out why I am experiencing this discomfort. Did the drilling cause some trauma to the nerve or tooth. Should I be having this pain now for six days. Awaiting your answer. Thank you , Mary