Last year, I had one of my molars checked because it hurts when I chew. The pain is only on one specific spot and it only hurts when I chew. She said there is nothing wrong with it but she put a crown on it because she thought the teeth was cracked. However, the tooth is now extremely sensitive to hot and cold. It hurts when I put pressure on it. There is still a sharp pain when I chew. I also noticed an unpleasant taste in the spot of the tooth and a bad smell when I floss. I visited my dentist three times about this but she just ground the crown down further. Should I visit another dentist? I want to chew without any pain. I am looking forward for your suggestions.