Permanent crown placed on yesterday.Went to work afterwards,everything was ok with the pain until numbness went away.When I bite I feel my crown & I'm in pain.But the pain feels like its coming from my bottom tooth,crown was placed on top tooth.Not sure if the crown is too tight causing the pain. My crown was also filed down too much by the dentist assistant or chipped from her dropping it on the floor.Now I'm afraid the porcelain is going to continue to chip. Please help,what should I do?