Q. I had a crown fitted over a year ago which had to be filed down to eventually fit the tooth. It looks to be much too big. I had pain as soon as the crown was fitted. I have experienced pain on and off ever since.The first time I went back to the dentist he drilled a hole in the crown and took out the nerves and filled the spaces and then filled the hole in the top of the crown. I am now experiencing pain on biting, nerve like pain with cold drinks,and an odour when I touch the sides of the crowned tooth. I have a dark line at the base of the crown. I saw the dentist today and he says there is nothing wrong with the crown or the root canal work and has given me antibiotics for a possible infection. He says the tooth will have to be removed if the problems persist. I feel that the crown was too big for my tooth and has caused the problems. How do I go about getting a second opinion and what are your thoughts on my symptoms.